Stacking machine
By installing the gantry above the center line of the drive axle, the torque in front of the front wheel is reduced, and the problem of the large counterweight of the existing height-stacking machine increases the weight of the whole machine is solved, and the maximum reduction of the weight of the whole machine and the improvement of stability is achieved.
Patent Information
- Application Number
- CN202422404005.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-30
- Publication Date
- 2025-07-04
- Estimated Expiration
- 2034-09-30
AI Technical Summary
The existing container stacker has a large counterweight, which increases the weight of the whole machine.
Install the gantry above the center line of the drive axle, so that the horizontal distance between the center of the gantry and the center of the front wheel is 0. By reducing the torque in front of the front wheel, the counterweight is reduced, thereby reducing the weight of the entire machine.
The self-weight of the whole machine is minimized and the stability and efficiency of the stacker are improved.
Smart Images
Figure CN223060633U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the technical field of stackers, and particularly relates to a stacker. Background Art
[0002] The empty container stacker is a key equipment for container transportation, and is widely used for the stacking and transfer of containers in ports, terminals, railway and highway transfer stations, and yards. It has the characteristics of high stacking layers, fast stacking and handling speed, high operation efficiency, flexibility, and site saving. During long-term operation, the gantry of the stacker will frequently rise and fall, and the transmission parts such as chains will also operate frequently.
[0003] In order to ensure the stability of the whole machine, the existing container stackers are all provided with large-weight counterweights, which leads to an increase in the weight of the whole machine. Summary of the Utility Model
[0004] (1) Technical Problems to be Solved
[0005] In view of the above-mentioned disadvantages and deficiencies of the prior art, the utility model provides a stacker, thereby solving the technical problem that the counterweight of the existing stacker is large, resulting in an increase in the weight of the whole machine.
[0006] (2) Technical Solutions
[0007] In order to achieve the above object, the main technical solutions adopted by the utility model include:
[0008] The embodiment of the utility model provides a stacker, which includes a gantry, front wheels and a drive axle. There are two groups of front wheels, and they are respectively installed at both ends of the drive axle. The gantry is arranged directly above the drive axle and is symmetric about the center line of the drive axle; the gantry includes an inner gantry and an outer gantry. The inner gantry is rigidly connected to the drive axle, and the outer gantry is slidably connected to the inner gantry, so that the outer gantry can slide along the inner gantry in the vertical direction.
[0009] Further, it further includes a spreader, and the spreader is slidably connected to the outer gantry, so that the spreader can slide along the outer gantry in the vertical direction.
[0010] Further, the gantry further includes a sliding assembly. The sliding assembly includes a sprocket. The sprocket is arranged at the top end of the outer gantry, and a chain is engaged with the sprocket. Both ends of the chain are respectively fixed to the spreader and the inner gantry.
[0011] Further, it further includes a lifting oil cylinder. Both ends of the lifting oil cylinder are respectively connected to the inner gantry and the outer gantry to drive the outer gantry to rise.
[0012] Further, it further includes rear wheels. There are two rear wheels, and they are both arranged behind the front wheels. The two rear wheels are symmetric about the center line of the drive axle.
[0013] Further, it further includes a frame which is arranged between the drive axle and the rear wheels.
[0014] Further, it further includes a driver's cab which is installed above the frame.
[0015] Further, it further includes a counterweight which is installed above the rear part of the frame.
[0016] Further, it further includes a swing oil cylinder. Both ends of the swing oil cylinder are respectively fixed to the inner gantry and the frame, and the swing oil cylinder forms an angle with the vertical direction to drive the gantry to swing back and forth.
[0017] (III) Advantageous Effects
[0018] The advantageous effects of the present utility model are as follows:
[0019] For a reach stacker of the present utility model, since the gantry is installed above the center line of the drive axle, the horizontal distance from the center of the gantry to the center of the front wheels is 0, thereby reducing the moment in front of the front wheels. Then, the counterweight behind the front wheels can also be reduced accordingly, thereby reducing the overall weight of the machine. Compared with the prior art, it realizes the maximum reduction of the self-weight of the whole machine. Description of the Drawings
[0020] Figure 1 It is a schematic structural diagram of the reach stacker;
[0021] Figure 2 It is a front view schematic diagram of the reach stacker;
[0022] Figure 3 It is a schematic diagram of the lever principle in the prior art;
[0023] Figure 4 It is a schematic diagram of the lever principle in the present utility model.
[0024]
Description of the Reference Numerals
[0025] 1: Gantry; 11: Inner gantry; 12: Outer gantry; 13: Sliding assembly; 131: Sprocket; 132: Chain;
[0026] 2: Front wheels; 3: Drive axle; 4: Lifting appliance; 5: Lifting oil cylinder; 6: Rear wheels; 7: Frame; 8: Driver's cab; 9: Counterweight; 10: Swing oil cylinder. Detailed Embodiments
[0027] In order to better explain the present utility model for easy understanding, the present utility model will be described in detail below with reference to the drawings through specific embodiments.
[0028] As Figures 1-4 shown, the present utility model provides a reach stacker, as Figure 1 、 Figure 2As shown, it includes a gantry 1, front wheels 2, a drive axle 3, a spreader 4, a lifting cylinder 5, rear wheels 6, a frame 7, a driver's cab 8, a counterweight 9, and a swing cylinder 10. There are two sets of front wheels 2, both of which are in contact with the ground and are respectively installed at both ends of the drive axle 3. The gantry 1 is arranged directly above the drive axle 3 and is symmetric about the center line of the drive axle 3, that is, above the center line of the front wheels 2.
[0029] As Figure 1 , Figure 2 shown, the gantry 1 includes an inner gantry 11, an outer gantry 12, and a sliding assembly 13. The inner gantry 11 is rigidly connected to the drive axle 3 through an ear plate. The outer gantry 12 is slidably connected to the inner gantry 11 through a slider or a rolling bearing, enabling the outer gantry 12 to slide vertically along the inner gantry 11. As Figure 2 shown, the sliding assembly 13 includes a sprocket 131. The sprocket 131 is arranged at the top of the outer gantry 12. A chain 132 is engaged with the sprocket 131. One end of the chain 132 is connected to the spreader 4, and the other end is fixed to the inner gantry 11 of the gantry 1 after passing around the sprocket 131 above the outer gantry 12 of the gantry 1.
[0030] As Figure 1 , Figure 2 shown, the spreader 4 is slidably connected to the outer gantry 12, enabling the spreader 4 to slide vertically along the outer gantry 12.
[0031] As Figure 1 shown, both ends of the lifting cylinder 5 are respectively connected to the inner gantry 11 and the outer gantry 12 to drive the outer gantry 12 to rise. When the lifting cylinder 5 extends to push the outer gantry 12 of the gantry 1 to rise, the outer gantry 12 of the gantry 1 pushes the sprocket 131 to rise and drives the spreader 4 to rise. The sliding assembly 13 composed of the sprocket 131 and the chain 132 makes the rising speed of the spreader 4 twice that of the rising speed of the outer gantry 12 of the gantry 1.
[0032] As Figure 1 shown, there are two rear wheels 6, both of which are arranged behind the front wheels 2. The two rear wheels 6 are symmetric about the center line of the drive axle 3. The frame 7 is arranged between the drive axle 3 and the rear wheels 6 and is rigidly connected to the drive axle 3 and the rear wheels 6. The driver's cab 8 is installed above the frame 7. The counterweight 9 is rigidly installed above the rear part of the frame 7.
[0033] As Figure 1 shown, both ends of the swing cylinder 10 are respectively fixed to the inner gantry 11 and the frame 7, and the swing cylinder 10 forms an angle with the vertical direction to drive the gantry 1 to swing back and forth. In this embodiment, one end of the swing cylinder 10 is fixed to the inner gantry 11 through an ear plate, and the other end is connected to the frame 7. When the swing cylinder 10 expands and contracts, it can control the gantry 1 to swing back and forth at a small angle.
[0034] When the stacker is operating, asFigure 3 As shown in the figure, the reach truck will form a lever with the front wheel 2 as the fulcrum. To ensure the stability of the whole machine, the torque generated by the rear wheel 6, the frame 7, and the driver's cab 8 behind the front wheel 2 needs to be greater than the torque generated by the mast 1 and the spreader 4 in front of the front wheel 2. Therefore, a counterweight 9 needs to be installed behind the front wheel 2 to meet this requirement. The counterweight 9 will increase the weight of the reach truck. To reduce the weight of the reach truck caused by the counterweight 9, it is necessary to reduce the torque in front of the front wheel 2, so that the weight of the counterweight 9 can also be reduced, thereby reducing the weight of the whole machine. Therefore, in this embodiment, as Figure 4 shown in the figure, the mast 1 is arranged above the center line of the front wheel 2, so that the horizontal distance h from the center of the mast 1 to the center of the front wheel 2 can be reduced, and the torque in front of the front wheel 2 can be reduced.
[0035] The utility model installs the mast 1 above the center line of the drive axle 3, that is, above the center line of the front wheel 2. At this time, the value of h is 0, so that the torque generated by the mast 1 is basically 0, and the self-weight of the whole machine is reduced to the greatest extent.
[0036] In the description of the present utility model, it should be understood that the terms "first" and "second" are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include one or more of such features. In the description of the present utility model, the meaning of "a plurality" is two or more, unless otherwise specifically defined.
[0037] In the present utility model, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and other terms should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or integrated; it can be a mechanical connection, or an electrical connection; it can be directly connected, or indirectly connected through an intermediate medium; it can be the internal communication of two components or the interaction relationship between two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific situations.
[0038] In the present utility model, unless otherwise clearly specified and limited, the first feature being "on" or "under" the second feature can be that the first and second features are in direct contact, or the first and second features are indirectly in contact through an intermediate medium. Moreover, the first feature being "above", "over" and "on" the second feature can be that the first feature is directly above or obliquely above the second feature, or merely indicates that the first feature has a higher horizontal height than the second feature. The first feature being "under", "below" and "beneath" the second feature can be that the first feature is directly below or obliquely below the second feature, or merely indicates that the first feature has a lower horizontal height than the second feature.
[0039] In the description of this specification, the descriptions of terms such as "one embodiment", "some embodiments", "embodiment", "example", "specific example", or "some examples" mean that the specific features, structures, materials, or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present utility model. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, without contradiction, those skilled in the art can combine and combine the different embodiments or examples described in this specification and the features of different embodiments or examples.
[0040] Although the embodiments of the present utility model have been shown and described above, it can be understood that the above embodiments are exemplary and should not be construed as limiting the present utility model. Those of ordinary skill in the art can make changes, modifications, substitutions, and variations to the above embodiments within the scope of the present utility model.
Claims
1. A reach truck, characterized in that, It includes a gantry (1), front wheels (2) and a drive axle (3). There are two sets of the front wheels (2), which are respectively installed at both ends of the drive axle (3). The gantry (1) is arranged directly above the drive axle (3) and is symmetrical about the center line of the drive axle (3). The gantry (1) includes an inner gantry (11) and an outer gantry (12). The inner gantry (11) is rigidly connected to the drive axle (3), and the outer gantry (12) is slidably connected to the inner gantry (11) so that the outer gantry (12) can slide vertically along the inner gantry (11).
2. The reach stacker according to claim 1, characterized in that, It further includes a spreader (4), and the spreader (4) is slidably connected to the outer gantry (12) so that the spreader (4) can slide vertically along the outer gantry (12).
3. The reach stacker according to claim 2, wherein, The gantry (1) further includes a sliding assembly (13). The sliding assembly (13) includes a sprocket (131). The sprocket (131) is arranged at the top of the outer gantry (12). A chain (132) is engaged with the sprocket (131). Both ends of the chain (132) are respectively fixed to the spreader (4) and the inner gantry (11).
4. The reach stacker according to claim 1, characterized in that, It further includes a lifting oil cylinder (5). Both ends of the lifting oil cylinder (5) are respectively connected to the inner gantry (11) and the outer gantry (12) to drive the outer gantry (12) to rise.
5. The reach stacker according to claim 1, characterized in that, It further includes rear wheels (6). There are two rear wheels (6), and they are both arranged behind the front wheels (2). The two rear wheels (6) are symmetrical about the center line of the drive axle (3).
6. The reach stacker according to claim 5, characterized in that, It further includes a vehicle frame (7), and the vehicle frame (7) is arranged between the drive axle (3) and the rear wheels (6).
7. The reach stacker according to claim 6, wherein, It further includes a driver's cab (8), and the driver's cab (8) is installed above the vehicle frame (7).
8. The reach stacker according to claim 6, characterized in that, It further includes a counterweight (9), and the counterweight (9) is installed above the rear part of the vehicle frame (7).
9. The reach stacker according to claim 6, characterized in that, It further includes a swing oil cylinder (10). Both ends of the swing oil cylinder (10) are respectively fixed to the inner gantry (11) and the vehicle frame (7), and the swing oil cylinder (10) forms an angle with the vertical direction to drive the gantry (1) to swing back and forth.