A rope breaking protection device for stacker loading platform

Abstract

The present invention relates to the technical field of rope breaking protection for stackers, and in particular to a rope breaking protection device for a cargo platform of a stacker, comprising a fixed frame, a connecting plate connected to the cargo platform is fixedly connected to the lower surface of the fixed frame, a connecting mechanism is arranged at the inner top end of the fixed frame, a floating mechanism for adjusting the position of the fixed frame is arranged at the inner bottom end of the fixed frame, a pulling mechanism for emergency braking is arranged at the front side of the floating mechanism, two left-right symmetrical limiting mechanisms for assisting the pulling mechanism in emergency braking are arranged at the front side of the floating mechanism and below the pulling mechanism, the sliding friction between the protection device and the sliding track is changed to rolling friction through the setting of the adjusting member, thereby reducing resistance and eliminating noise, and the adjusting member cooperates with the fixed plate to float left and right on the mounting frame to eliminate the misalignment between the protection device and the track, reduce the wear between the track and the cargo platform, ensure the smooth operation of the cargo platform, and ensure the safety and reliability of the device.

Description

Technical Field

[0001] The invention relates to the technical field of rope break protection for stackers, and in particular to a rope break protection device for a cargo platform of a stacker. Background Art

[0002] Stacker is a lifting and transporting equipment in storage equipment, used to transport and stack goods. Stacker, also known as stacking crane, is the most important lifting and transporting equipment in a three-dimensional warehouse and represents the characteristics of a three-dimensional warehouse. It uses a fork or a string rod as a picking device to grab, transport and stack or pick and place unit goods from high-rise shelves in warehouses, workshops, etc.

[0003] The cargo platform of the stacker usually uses steel cables as the power to move up and down to pick up and place goods. However, when the steel cables break, the cargo platform will fall down rapidly. Therefore, a rope break protection device needs to be installed on the cargo platform of the stacker to protect it from rope breakage.

[0004] In the prior art, there is a stacker rope breaking protection device provided by publication number CN115353044A, which specifically relates to the technical field of stackers, including a cargo platform, guide rails arranged on both sides of the cargo platform, and a traction rope. Under the traction of the traction rope, the cargo platform is lifted and lowered along the guide rails, and a rope breaking protection component is arranged at the end of the cargo platform close to the guide rails. Through the arrangement of the rope breaking protection component, when the pulling force of the traction rope breaks and disappears, the outer slider moves downward, so that the pressure plate is pressed on the guide rail to achieve the purpose of emergency stop of the cargo platform. Through the arrangement of the trigger block and the locking block, on the one hand, when the traction rope is not broken, the pulley 2 is located inside the inclined groove 2 so that the inner slider does not move downward. On the other hand, when the traction rope breaks, the pulley 1 enters the inside of the inclined groove 1, and through the blocking of the locking block, the swing rod cannot swing, that is, it is ensured that the pulley 1 can always press on the pressure rod, so that the pressure plate can always press on the guide rail, and the cargo platform can be stopped in an emergency.

[0005] The above-mentioned prior art is to directly install the rope breaking protection mechanism on the cargo platform. The track on the stacker is welded on the column due to the large torque it bears. Since the straightness of the welded turntable on the column is within the error range of 2-3mm, the anti-loose rope breaking protection device fixed on the cargo platform will rub against the track. In addition, the above-mentioned prior art moves the outer slider downward to press the pressure plate on the guide rail to realize the emergency stop of the cargo platform. The emergency stop is achieved by pressing the pressure plate directly on the guide rail. Since the area of ​​the entire pressure plate is large, when the entire pressure plate is pressed on the guide rail, the same downward pressure cannot be guaranteed at each position of the entire pressure plate, so that the friction between each position of the pressure plate and the guide rail is the same, thereby affecting the braking effect of the pressure plate. Summary of the invention

[0006] In order to prevent the stacker's cargo platform from falling down rapidly and causing danger to workers when the stacker breaks its rope during its up and down movement, and to ensure the normal operation of the stacker, the present invention provides a stacker's cargo platform rope breaking protection device.

[0007] A rope-breaking protection device for a stacker loading platform provided by the present invention adopts the following technical scheme: a rope-breaking protection device for a stacker loading platform comprises a fixed frame, a connecting mechanism is arranged at the inner top end of the fixed frame, a floating mechanism for adjusting the position of the fixed frame is arranged at the inner bottom end of the fixed frame, a pulling mechanism for emergency braking is arranged at the front side of the floating mechanism, and two left-right symmetrical limiting mechanisms for assisting the pulling mechanism in emergency braking are arranged at the front side of the floating mechanism and below the pulling mechanism.

[0008] The floating mechanism includes an installation frame fixedly connected to the inner side of the fixed frame, and sliding grooves are provided at both upper and lower ends of the inner surface of the installation frame. A fixed plate is connected to the two sliding grooves for sliding left and right, and an auxiliary adjustment member is provided on the fixed plate for moving left and right inside the installation frame.

[0009] The pulling mechanism comprises a pulling member arranged on the front surface of a fixed plate, two synchronous members which are symmetrical and slide up and down are arranged on the fixed plate, and a braking member for emergency braking is arranged on the rear surface of the fixed plate.

[0010] Preferably, a connecting plate connected to the cargo platform is fixedly connected to the lower surface of the fixed frame, a mounting column is provided on the rear side of the fixed frame, a sliding track is fixedly installed on the front surface of the mounting column, and a turning wheel is fixedly installed on the front side of the floating mechanism.

[0011] Preferably, the connecting mechanism includes two symmetrical installation grooves opened on the left and right sides of the fixed frame, and the two installation grooves are connected to the movable pulley fixing frame of the cargo platform in an up and down sliding manner. The movable pulley fixing frame of the cargo platform is connected to the inner side wall of the fixed frame in an up and down sliding manner, and a connecting piece is arranged on the lower surface of the movable pulley fixing frame of the cargo platform.

[0012] Preferably, the connecting member includes a mounting horizontal plate fixedly connected to the inside of the fixed frame, a connecting column is slidably connected up and down on the mounting horizontal plate, a connecting block is fixedly connected to the bottom end of the connecting column, a first connecting spring is sleeved on the circumferential surface of the connecting column and located between the mounting horizontal plate and the connecting block, and the first connecting spring is in a compressed state in a normal state, and a traction rope is fixedly connected to the bottom end of the connecting block.

[0013] Preferably, the pulling member includes a fixed horizontal plate fixedly connected to the front surface of the fixed plate, and two left-right symmetrical T-shaped pull rods are slidably connected and penetrated on the upper surface of the fixed horizontal plate. A second connecting spring is sleeved on the circumferential surface of the T-shaped pull rod and located on the upper surface of the fixed horizontal plate. In a normal state, the second connecting spring is in a compressed state, and the bottom ends of the two T-shaped pull rods are commonly fixedly connected to a linkage plate.

[0014] Preferably, the braking member includes a limiting frame fixedly connected to the rear surface of the fixed plate, two inclined blocks are slidably connected left and right between the limiting frame and the fixed plate, friction plates are fixedly connected on the opposite back surfaces of the two inclined blocks, a second limiting groove is provided at the position of the fixed plate corresponding to the inclined block, and a connecting slider adapted to the second limiting groove is provided on the inclined block.

[0015] Preferably, the synchronizing member includes two left-right symmetrical sliding slots provided on the fixed plate, the sliding slots are internally connected with a connecting sliding block for sliding up and down sliding movement, the rear surface of the connecting sliding block is rotatably connected with a pushing stick, a first limiting sliding slot is provided at a position corresponding to the pushing stick on the limiting frame, the rear end of the pushing stick is slidably connected to the first limiting sliding slot for up and down movement, the front surface of the connecting sliding block is fixedly connected to the rear surface of the linkage plate, the opposing surfaces of the two inclined plane blocks are both provided with inclined planes, the two pushing sticks correspond to the two inclined plane blocks one by one and the inclined planes on the two inclined plane blocks are respectively fitted with each other.

[0016] Preferably, the adjusting member includes two vertically symmetrical first limiting rollers rotatably connected to the rear surface of the fixed plate, the first limiting rollers are rollingly connected to the front surface of the sliding track, the rear surface of the fixed plate is fixedly connected with two groups of left-right symmetrical second limiting rollers, each group of the second limiting rollers is two in number and symmetrical in number, the second limiting rollers are rollingly connected to the inner side wall of the sliding track, and two groups of vertically symmetrical limiting sliding bars are penetrated and slidably connected on the left and right side surfaces of the fixed plate, each group of the limiting sliding bars is two in number and symmetrical in number, the end of the limiting sliding bar away from the fixed plate is fixedly connected to the mounting frame, and a third connecting spring is arranged between the limiting sliding bar and the fixed plate.

[0017] Preferably, the limiting mechanism on the right side includes a fixed shell fixedly connected to the front surface of the fixed plate, a connecting card plate is slidably connected to the inside of the fixed shell up and down, a plurality of fourth connecting springs are arranged between the lower surface of the connecting card plate and the inner wall of the bottom end of the fixed shell, and the fourth connecting spring is in a compressed state in a normal state, and two left-right symmetrical mounting seats are fixedly connected to the front surface of the fixed shell, a resistance plate is hinged between the opposite surfaces of the two mounting seats, and two left-right symmetrical elastic telescopic connecting rods are hinged to the rear surface of the resistance plate, and one end of the elastic telescopic connecting rod away from the resistance plate is hinged to the front surface of the fixed shell.

[0018] Preferably, the front surface of the connecting card is provided with teeth evenly distributed up and down, the position of the abutment plate corresponds to the position of the teeth on the connecting card and is connected by a snap connection, and the top of the connecting card is fixedly connected to the lower surface of the linkage plate.

[0019] In summary, the present invention includes at least one of the following beneficial technical effects:

[0020] 1. The present invention changes the sliding friction between the protection device and the sliding track into rolling friction through the setting of the adjusting piece, thereby reducing resistance and eliminating noise. The adjusting piece cooperates with the fixing plate to float left and right on the installation frame to eliminate the misalignment between the protection device and the track, reduce the wear between the track, ensure the smooth operation of the cargo platform, and ensure the safety and reliability of the device.

[0021] 2. The present invention can prevent the inclined plane block from rebounding when the brake part performs emergency braking through the setting of the limiting mechanism, so as to ensure that the inclined plane block always contacts the side wall of the track for braking, so as to achieve better braking effect, and to reserve sufficient rescue time, thereby minimizing the loss caused by rope breakage in the stacker, and by having two inclined plane blocks contact the track in two directions, the overall force on the inclined plane block can be more even, so as to achieve better braking effect.

[0022] 3. The present invention can perform emergency braking at the first time when the stacker has a rope break through the connection piece and the pulling piece, so as to ensure that the stacker will suffer less damage after the rope break. At the same time, by utilizing the tension on the movable pulley fixing frame of the cargo platform to determine whether the rope is broken, the brake piece is driven to perform emergency braking, which can also avoid malfunction and affect the normal operation of the stacker. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a three-dimensional structural schematic diagram of the present invention.

[0024] Figure 2 It is a three-dimensional structural schematic diagram of the connecting mechanism of the present invention.

[0025] Figure 3 It is a three-dimensional structural schematic diagram of the pulling mechanism and the floating mechanism of the present invention.

[0026] Figure 4 It is a three-dimensional cross-sectional view of the pulling mechanism and the floating mechanism of the present invention.

[0027] Figure 5 It is a front sectional view of the installation frame of the present invention.

[0028] Figure 6 It is a three-dimensional structural schematic diagram of the brake component of the present invention.

[0029] Figure 7 It is a three-dimensional structural schematic diagram of the cooperation between the synchronizer and the brake member of the present invention.

[0030] Figure 8 It is a three-dimensional structural schematic diagram of the limiting mechanism of the present invention.

[0031] Description of the accompanying drawings: 1, fixed frame; 2, sliding track; 3, mounting column; 4, connecting mechanism; 5, pulling mechanism; 6, floating mechanism; 7, limiting mechanism; 8, changing wheel; 9, connecting plate; 41, cargo platform movable pulley fixing frame; 42, mounting slide groove; 43, connecting member; 51, pulling member; 52, synchronous member; 53, braking member; 61, mounting frame; 62, adjusting member; 63, fixed plate; 64, sliding groove; 71, contact plate; 72, connecting card plate; 73, fixed shell; 74, elastic telescopic connecting rod; 75, fourth connecting spring; 76, mounting seat; 4 31. Install the horizontal plate; 432. Connect the vertical column; 433. The first connecting spring; 434. Connect the block; 435. The traction rope; 511. The T-shaped pull rod; 512. The second connecting spring; 513. Fix the horizontal plate; 514. The linkage plate; 521. The first limiting slide groove; 522. The push rod; 523. The sliding slot; 524. Connect the sliding block; 531. The inclined block; 532. The friction plate; 533. The limiting frame; 534. The second limiting slide groove; 621. The first limiting roller; 622. The third connecting spring; 623. The limiting slide rod; 624. The second limiting roller. DETAILED DESCRIPTION

[0032] The following is combined with Figure 1-Figure 8 The present invention is described in further detail.

[0033] The embodiment of the present invention discloses a rope breaking protection device for a stacker loading platform, which can protect the stacker loading platform from rope breaking while ensuring that the rope breaking protection device can maintain smooth up and down displacement with the track 2 to avoid affecting the normal operation of the stacker.

[0034] Reference Figure 1 and Figure 2 A rope breaking protection device for a stacker loading platform comprises a fixed frame 1, a connecting mechanism 4 is arranged at the inner top end of the fixed frame 1, a floating mechanism 6 for adjusting the position of the fixed frame 1 is arranged at the inner bottom end of the fixed frame 1, a pulling mechanism 5 for emergency braking is arranged on the front side of the floating mechanism 6, two left-right symmetrical limiting mechanisms 7 for assisting the pulling mechanism 5 in emergency braking are arranged on the front side of the floating mechanism 6 and below the pulling mechanism 5, a connecting plate 9 connected to the loading platform is fixedly connected to the lower surface of the fixed frame 1, a mounting column 3 is arranged on the rear side of the fixed frame 1, a sliding track 2 is fixedly installed on the front surface of the mounting column 3, and a changing wheel 8 is fixedly installed on the front side of the floating mechanism 6.

[0035] See also Figure 3, Figure 4 and Figure 5 The floating mechanism 6 includes a mounting frame 61 fixedly connected to the inner side of the fixed frame 1, and sliding grooves 64 are provided at both upper and lower ends of the inner surface of the mounting frame 61. A fixing plate 63 is connected to the two sliding grooves 64 for sliding left and right. The fixing plate 63 is provided with an auxiliary adjusting member 62 for moving left and right inside the mounting frame 61.

[0036] In this case, the adjustment member 62 is provided so that the sliding friction between the protection device and the sliding track 2 is changed to rolling friction, thereby reducing resistance and eliminating noise. The adjustment member 62 cooperates with the fixing plate 63 to float left and right on the mounting frame 61 to eliminate the misalignment between the protection device and the track, reduce the wear between the track, ensure the smooth operation of the cargo platform, and ensure the safety and reliability of the device.

[0037] See also Figure 3 The pulling mechanism 5 includes a pulling member 51 arranged on the front surface of the fixed plate 63, two synchronous members 52 that are symmetrical and slide up and down are arranged on the fixed plate 63, and a braking member 53 for emergency braking is arranged on the rear surface of the fixed plate 63.

[0038] In this case, the setting of the limiting mechanism 7 can make the braking effect better when the brake member 53 performs emergency braking, and can reserve sufficient rescue time, thereby reducing the loss caused by the rope breakage of the stacker as much as possible.

[0039] See also Figure 2 The connecting mechanism 4 includes two symmetrical installation grooves 42 opened on the left and right sides of the fixed frame 1, and the two installation grooves 42 are connected with the cargo platform movable pulley fixing frame 41 for sliding up and down together. The cargo platform movable pulley fixing frame 41 is connected with the inner side wall of the fixed frame 1 for sliding up and down, and a connecting piece 43 is arranged on the lower surface of the cargo platform movable pulley fixing frame 41.

[0040] In this case, the connecting member 43 cooperates with the pulling member 51 to perform emergency braking as soon as the stacker encounters a rope break, to ensure that the stacker will suffer less damage after the rope break occurs. At the same time, by utilizing the tension on the movable pulley fixing frame 41 of the cargo platform to determine whether the rope is broken, the brake member 53 is driven for emergency braking, which can also avoid malfunctions that affect the normal operation of the stacker.

[0041] See also Figure 3 , Figure 4 , Figure 5 and Figure 6The adjusting member 62 includes two first limiting rollers 621 symmetrically connected to the rear surface of the fixed plate 63 in rotation, the first limiting rollers 621 are rollingly connected to the front surface of the sliding track 2, and the rear surface of the fixed plate 63 is fixedly connected with two groups of left-right symmetrical second limiting rollers 624, each group of second limiting rollers 624 is two in number and symmetrical in number, the second limiting rollers 624 are rollingly connected to the inner side wall of the sliding track 2, and the left and right side surfaces of the fixed plate 63 are penetrated and slidably connected with two groups of up-and-down symmetrical limiting slide bars 623, each group of limiting slide bars 623 is two in number and symmetrical in number, the end of the limiting slide bar 623 away from the fixed plate 63 is fixedly connected to the mounting frame 61, and a third connecting spring 622 is arranged between the limiting slide bar 623 and the fixed plate 63.

[0042] During actual use, when the cargo platform of the stacker moves up and down normally, the cargo platform is connected to the fixed frame 1 through the connecting plate 9, and the cargo platform is driven to move up and down for stacking through the steel cable and the cargo platform movable pulley fixing frame 41. At the same time, in the process of the up and down displacement of the cargo platform, the first limiting roller 621 rolls against the rear inner wall of the sliding track 2, and the second limiting roller 624 slides against the left and right inner walls of the sliding track 2. When the cargo platform moves up and down in the vertical direction, the first limiting roller 621 and the second limiting roller 624 are driven to slide up and down against the inner wall of the sliding track 2.

[0043] When the sliding track 2 encounters a position where the sliding track 2 deviates in the vertical direction, the sliding track 2 generates a thrust in the deviation direction on the second limiting roller 624. At this time, the thrust received by the second limiting roller 624 acts on the fixing plate 63, and the fixing plate 63 slides on the limiting slide rod 623 under the force. At the same time, the upper and lower ends of the fixing plate 63 slide inside the sliding groove 64, so that the fixing plate 63 can only slide in the left and right directions on the mounting frame 61. With the elastic force of the third connecting spring 622 itself, the fixing plate 63 is restored to its original position after passing the deviation position of the sliding track 2. At this time, when the fixing frame 1 drives the mounting frame 61 to move up and down in the vertical direction, the fixing plate 63 is deflected and adjusted by fitting the vertical trajectory of the sliding track 2, so that the fixing frame 1 can avoid being stuck or having excessive friction when moving up and down in the vertical direction.

[0044] See also Figure 2 The connecting member 43 includes a mounting horizontal plate 431 fixedly connected to the inside of the fixed frame 1, a connecting column 432 is slidably connected to the mounting horizontal plate 431 up and down, a connecting block 434 is fixedly connected to the bottom end of the connecting column 432, and a first connecting spring 433 is sleeved on the circumferential surface of the connecting column 432 and located between the mounting horizontal plate 431 and the connecting block 434. In a normal state, the first connecting spring 433 is in a compressed state, and a traction rope 435 is fixedly connected to the bottom end of the connecting block 434.

[0045] See also Figure 3 and Figure 4 The pulling member 51 includes a fixed horizontal plate 513 fixedly connected to the front surface of the fixed plate 63, and two left-right symmetrical T-shaped pull rods 511 are slidably and penetrated through the upper surface of the fixed horizontal plate 513. A second connecting spring 512 is sleeved on the circumferential surface of the T-shaped pull rod 511 and located on the upper surface of the fixed horizontal plate 513. In a normal state, the second connecting spring 512 is in a compressed state. The bottom ends of the two T-shaped pull rods 511 are fixedly connected to a linkage plate 514, and the end of the traction rope 435 away from the connecting block 434 bypasses the changing wheel 8 and is fixedly connected to the lower surface of the linkage plate 514.

[0046] See also Figure 4 , Figure 6 and Figure 7 The synchronous member 52 includes two left-right symmetrical sliding slots 523 opened on the fixed plate 63, and the sliding slots 523 are slidably connected to the connecting sliding block 524 inside, and the rear surface of the connecting sliding block 524 is rotatably connected to the pushing rod 522. A first limiting sliding slot 521 is opened at the position corresponding to the pushing rod 522 on the limiting frame 533, and the rear end of the pushing rod 522 is slidably connected to the first limiting sliding slot 521 up and down, and the front surface of the connecting sliding block 524 is fixedly connected to the rear surface of the linkage plate 514.

[0047] When the cam 432 is in the process of being pulled up and down, the second connecting spring 512 will drive the linkage plate 514 to slide upward through the T-shaped pull rod 511, and the linkage plate 514 will drive the connecting sliding block 524 to slide upward inside the sliding slot 523, and the pushing rod 522 will slide upward synchronously therewith. Through the setting of the first limiting sliding slot 521, the sliding direction of the pushing rod 522 is limited during the sliding process inside the pushing rod 522, so that the pushing rod 522 can keep sliding up and down in the vertical direction. At this time, the pushing rod 522 pushes the brake member 53 to start emergency braking.

[0048] See also Figure 6 and Figure 7The brake member 53 includes a limiting frame 533 fixedly connected to the rear surface of the fixed plate 63, and two inclined blocks 531 are slidably connected between the limiting frame 533 and the fixed plate 63. Friction plates 532 are fixedly connected to the opposite back surfaces of the two inclined blocks 531. A second limiting groove 534 is opened at the position corresponding to the inclined block 531 on the fixed plate 63, and a connecting slider adapted to the second limiting groove 534 is provided on the inclined block 531. Inclined surfaces are set on the opposite surfaces of the two inclined blocks 531, and the two pushing rods 522 correspond to the two inclined blocks 531 one by one and are respectively fitted with the inclined surfaces on the two inclined blocks 531.

[0049] When the push rod 522 is used, it slides upward under the force. At this time, the push rod 522 moves upward along the inclined surface of the inclined surface block 531. At the same time, the push rod 522 rotates on the connecting sliding block 524, so that the friction between the push rod 522 and the inclined surface block 531 is smaller, so that the push rod 522 can move upward smoothly. At this time, the limit frame 533 limits the inclined surface block 531 upward. When the push rod 522 moves upward along the inclined surface of the inclined surface block 531, the push rod 522 The cam 532 is pressed against the inner wall of the sliding track 2 to prevent the stacker from falling off continuously, thereby protecting the stacker from rope breakage.

[0050] See also Figure 8 The locking plate 72 is secured to the locking plate 74 by a spring 76 which is secured to the locking plate 74 with respect to the locking cam 73. The locking plate 72 is secured to the locking plate 74 by a spring 76 which is secured to the locking cam 73 with respect to the locking cam 73.

[0051] When the locking cam 72 is in the unlocked position, the locking cam 72 will be in the unlocked position, and the locking cam 72 will be in the unlocked position when the locking cam 72 is unlocked. When the locking cam 72 is in the unlocking state, the locking cam 72 can be locked to the locking cam 74 by the locking cam 76. When the locking cam 72 is unlocked, the locking cam 72 can be locked to the locking cam 74 by the locking cam 76.

[0052] Therefore, when the rope of the cargo platform breaks, the present invention can brake the cargo platform on the track 2 immediately to prevent the cargo platform from sliding downward for too long and generating excessive acceleration, which affects the braking effect. At the same time, the setting of the floating mechanism 6 can prevent the protective device from affecting the normal operation of the cargo platform, further improving the scope of application of the present invention.

[0053] The implementation principle of the present invention is:

[0054] (1) When the cargo platform of the stacker moves up and down normally, the setting of the adjustment member 62 can make the cargo platform move more smoothly when moving up and down, and the friction between the cargo platform and the sliding track 2 is smaller.

[0055] (2) When moving up and down, since the sliding track 2 has a certain deviation in the vertical direction, the adjusting member 62 drives the fixed plate 63 to move on the mounting frame 61 in accordance with the movement of the sliding track 2, so that when the cargo platform drives the fixed frame 1 to move up and down, the deviation generated during the up and down displacement is offset by the left and right movement of the fixed plate 63.

[0056] (3) When the rope breaks, the steel cable loses its pulling force on the cargo platform movable pulley fixing frame 41. At this time, the elastic force of the first connecting spring 433 and the gravity of the cargo platform movable pulley fixing frame 41 push the connecting column 432 downward, thereby canceling the pulling force on the traction rope 435.

[0057] (4) When the traction rope 435 is not subjected to tension, the second connecting spring 512 drives the linkage plate 514 to move upward under the action of its own elastic force. At this time, the linkage plate 514 drives the pushing rod 522 to slide upward.

[0058] (5) When the push rod 522 slides upward, the push rod 522 pushes the inclined surface block 531 to slide toward the side wall of the sliding track 2. The push rod 522 squeezes the inclined surface block 531 to fit against the side wall of the sliding track 2, thereby performing emergency braking.

[0059] The embodiments of this specific implementation method are all preferred embodiments of the present invention, and are not intended to limit the protection scope of the present invention. Therefore, all equivalent changes made based on the structure, shape, and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A rope breaking protection device for a stacker loading platform, characterized in that: It comprises a fixed frame (1), a connecting mechanism (4) is arranged at the inner top end of the fixed frame (1), a floating mechanism (6) for adjusting the position of the fixed frame (1) is arranged at the inner bottom end of the fixed frame (1), a pulling mechanism (5) for emergency braking is arranged at the front side of the floating mechanism (6), and two left-right symmetrical limiting mechanisms (7) for assisting the pulling mechanism (5) in emergency braking are arranged at the front side of the floating mechanism (6) and below the pulling mechanism (5); The floating mechanism (6) comprises a mounting frame (61) fixedly connected to the inner side of the fixing frame (1), the inner surface of the mounting frame (61) is provided with sliding grooves (64) at both upper and lower ends, a fixing plate (63) is slidably connected to the two sliding grooves (64) in a left-right manner, and the fixing plate (63) is provided with an adjusting member (62) for assisting the fixing plate (63) to move left-right inside the mounting frame (61); The pulling mechanism (5) comprises a pulling member (51) arranged on the front surface of a fixed plate (63), two synchronous members (52) which are symmetrical and slide up and down are arranged on the fixed plate (63), and a braking member (53) for emergency braking is arranged on the rear surface of the fixed plate (63).

2. A stacker cargo platform rope breaking protection device according to claim 1, characterized in that: A connecting plate (9) connected to the cargo platform is fixedly connected to the lower surface of the fixed frame (1), a mounting column (3) is provided on the rear side of the fixed frame (1), a sliding track (2) is fixedly installed on the front surface of the mounting column (3), and a direction-changing wheel (8) is fixedly installed on the front side of the floating mechanism (6).

3. The stacker cargo platform rope breaking protection device according to claim 1, characterized in that: The connection mechanism (4) comprises two symmetrical installation slide grooves (42) provided on the left and right side surfaces of the fixing frame (1); a cargo platform movable pulley fixing frame (41) is slidably connected to the two installation slide grooves (42) in an upward and downward manner; the cargo platform movable pulley fixing frame (41) is slidably connected to the inner side wall of the fixing frame (1) in an upward and downward manner; and a connecting piece (43) is provided on the lower surface of the cargo platform movable pulley fixing frame (41).

4. A stacker cargo platform rope breaking protection device according to claim 3, characterized in that: The connecting member (43) comprises a mounting horizontal plate (431) fixedly connected to the interior of the fixing frame (1); a connecting column (432) is slidably connected to the mounting horizontal plate (431) in an up-and-down manner; a connecting block (434) is fixedly connected to the bottom end of the connecting column (432); a first connecting spring (433) is sleeved on the circumferential surface of the connecting column (432) and is located between the mounting horizontal plate (431) and the connecting block (434); the first connecting spring (433) is in a compressed state in a normal state; and a traction rope (435) is fixedly connected to the bottom end of the connecting block (434).

5. The stacker cargo platform rope breaking protection device according to claim 1, characterized in that: The pulling member (51) comprises a fixed transverse plate (513) fixedly connected to the front surface of the fixed plate (63); two left-right symmetrical T-shaped pull rods (511) are slidably connected and penetrate the upper surface of the fixed transverse plate (513); a second connecting spring (512) is sleeved on the circumferential surface of the T-shaped pull rod (511) and located on the upper surface of the fixed transverse plate (513); in a normal state, the second connecting spring (512) is in a compressed state; and the bottom ends of the two T-shaped pull rods (511) are fixedly connected to a linkage plate (514) in common.

6. A stacker cargo platform rope breaking protection device according to claim 5, characterized in that: The brake member (53) comprises a limit frame (533) fixedly connected to the rear surface of the fixed plate (63); two inclined plane blocks (531) are slidably connected to the left and right sides of the limit frame (533) and the fixed plate (63); friction plates (532) are fixedly connected to the opposite back surfaces of the two inclined plane blocks (531); a second limit sliding groove (534) is provided at a position corresponding to the inclined plane block (531) on the fixed plate (63); and a connecting sliding block matched with the second limit sliding groove (534) is provided on the inclined plane block (531).

7. A stacker cargo platform rope breaking protection device according to claim 6, characterized in that: The synchronous member (52) comprises two left-right symmetrical sliding slots (523) provided on the fixed plate (63); a connecting sliding block (524) is slidably connected to the inside of the sliding slot (523); a pushing rod (522) is rotatably connected to the rear surface of the connecting sliding block (524); a first limiting sliding slot (521) is provided at a position corresponding to the pushing rod (522) on the limiting frame (533); a rear end of the pushing rod (522) is slidably connected to the first limiting sliding slot (521) up and down; a front surface of the connecting sliding block (524) is fixedly connected to the rear surface of the linkage plate (514); inclined surfaces are arranged on the opposite surfaces of the two inclined surface blocks (531); the two pushing rods (522) correspond to the two inclined surface blocks (531) one by one, and the inclined surfaces on the two inclined surface blocks (531) are respectively fitted.

8. The stacker cargo platform rope breaking protection device according to claim 1, characterized in that: The adjusting member (62) comprises two first limiting rollers (621) rotatably connected to the rear surface of the fixed plate (63) symmetrical in vertical direction, the first limiting rollers (621) being rollingly connected to the front surface of the sliding track (2), the rear surface of the fixed plate (63) being fixedly connected to two groups of second limiting rollers (624) symmetrical in vertical direction, each group of the second limiting rollers (624) being two in number and symmetrical in vertical direction, the second limiting rollers (624) being rollingly connected to the inner side wall of the sliding track (2), the left and right side surfaces of the fixed plate (63) being penetrated by two groups of limiting sliding bars (623) symmetrical in vertical direction and slidably connected thereto, each group of the limiting sliding bars (623) being two in number and symmetrical in vertical direction, one end of the limiting sliding bars (623) away from the fixed plate (63) being fixedly connected to the mounting frame (61), and a third connecting spring (622) being arranged between the limiting sliding bars (623) and the fixed plate (63).

9. A stacker cargo platform rope breaking protection device according to claim 5, characterized in that: The limiting mechanism (7) on the right side comprises a fixed shell (73) fixedly connected to the front surface of the fixed plate (63); a connecting card plate (72) is slidably connected to the interior of the fixed shell (73) in an upward and downward manner; a plurality of fourth connecting springs (75) are arranged between the lower surface of the connecting card plate (72) and the inner wall of the bottom end of the fixed shell (73); the fourth connecting springs (75) are in a compressed state in a normal state; two left-right symmetrical mounting seats (76) are fixedly connected to the front surface of the fixed shell (73); a contact plate (71) is hinged between the opposite surfaces of the two mounting seats (76); and two left-right symmetrical elastic telescopic connecting rods (74) are hinged to the rear surface of the contact plate (71); and one end of the elastic telescopic connecting rod (74) away from the contact plate (71) is hinged to the front surface of the fixed shell (73).

10. A stacker cargo platform rope breaking protection device according to claim 9, characterized in that: The front surface of the connecting card plate (72) is provided with teeth evenly distributed above and below, the position of the abutment plate (71) corresponds to the position of the teeth on the connecting card plate (72) and is connected by a snap connection, and the top end of the connecting card plate (72) is fixedly connected to the lower surface of the linkage plate (514).

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