A hydraulic walk trolley running gear
By designing a hydraulically controlled trolley traveling mechanism, the problem of low scaffolding efficiency in traditional bridge block fabrication was solved, enabling efficient trolley movement and precise position adjustment, thus improving construction efficiency.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- CHINA RAILWAY NO 3 GRP CO LTD
- Filing Date
- 2025-06-30
- Publication Date
- 2026-07-03
AI Technical Summary
In the traditional bridge block manufacturing process, the assembly and dismantling of scaffolding is inefficient, time-consuming, and labor-intensive, which affects construction efficiency.
Design a hydraulically driven trolley traveling mechanism that includes lifting, lateral movement, and traveling functions. The movement and position adjustment of the trolley are controlled by hydraulics. The overall movement and position adjustment of the trolley are achieved by the linkage of the lifting cylinder, the lifting cylinder, the lateral movement cylinder, and the stepping cylinder.
It improves the efficiency and flexibility of bridge block manufacturing, reduces manpower consumption, and enables efficient movement and precise positioning of the trolley.
Smart Images
Figure CN224451398U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of traveling trolley technology, specifically a trolley traveling mechanism that utilizes hydraulic movement. Background Technology
[0002] Traditional bridge block fabrication involves assembling multiple scaffolds between two piers, attaching precast molds to the top of the scaffolds, installing steel cages in the molds, pouring concrete, and then dismantling the molds and scaffolds after the concrete has hardened. This process of assembling and dismantling scaffolds and molds is inefficient and time-consuming. To address this issue, a hydraulically driven trolley mechanism is proposed. Utility Model Content
[0003] (a) Technical problems to be solved
[0004] To address the shortcomings of existing technologies, this utility model provides a hydraulically driven trolley traveling mechanism that has the advantages of traveling, lateral movement, and lifting adjustment, thus solving the aforementioned problems.
[0005] (II) Technical Solution
[0006] To achieve the aforementioned objectives of walking, lateral movement, and lifting adjustment, this utility model provides the following technical solution: a hydraulically driven trolley walking mechanism, comprising four gantry columns, a gantry crossbeam fixedly installed on the top of each gantry column, the top of the gantry crossbeam connected to a secondary beam via an auxiliary component, a distribution beam fixedly installed on the top of the secondary beam, a bottom mold fixedly installed on the top of the distribution beam, side molds fixedly installed on both sides of the bottom mold, an upper tie rod detachably installed on the top of the side mold, a cross beam fixedly installed between the front and rear gantry columns, lateral movement components provided at the four corners of the bottom of each gantry column, a forward movement component provided on the middle crossbeam below each gantry column, and a lifting component provided on the inner side of each gantry column.
[0007] Preferably, the auxiliary component consists of a sliding rod and a sliding sleeve, the sliding rod being slidably inserted into the sliding sleeve, the sliding sleeve being fixedly installed on the gantry beam, and the sliding rod being fixedly installed at the bottom of the secondary beam.
[0008] Preferably, the lifting assembly consists of a lifting cylinder and a lifting head. The lifting head is fixedly installed on the output end of the lifting cylinder, and the lifting cylinder is fixedly installed on the inner side of the gantry column. The lifting head presses against the bottom of the secondary beam. When the lifting cylinder drives the secondary beam to rise by 0.5 meters, an adjusting block is filled between the secondary beam and the gantry crossbeam. The adjusting block has a height of 1.5 meters, 1 meter, or 0.5 meters, and the adjusting block is detachably connected to the secondary beam and the gantry crossbeam respectively.
[0009] Preferably, the lateral movement assembly includes a lifting cylinder, the output end of which is fixedly mounted with a sliding column. The sliding column is slidably mounted on the surface of the gantry column via a fixed sleeve. A lateral movement slide block is hinged to the sliding column. A lateral movement rail is slidably mounted on the outer side of the lateral movement slide block. A lateral movement cylinder is hinged between the lateral movement rail and the lateral movement slide block. Lateral movement connecting rods are hinged between the lateral movement rails and between the lateral movement slide blocks.
[0010] Preferably, the forward moving component includes a stepping cylinder, one end of which is hinged to the middle crossbeam below the gantry column, and the other end of which is hinged to a forward moving slide. A forward moving beam is fixedly installed on the side of the forward moving slide, and both ends of the forward moving beam are slidably connected to the transverse moving guide rail through the forward moving slide. The transverse moving guide rail is fixedly installed on the bottom of the middle crossbeam below the gantry column.
[0011] Preferably, the lifting cylinder, the lowering cylinder, the lateral cylinder, and the stepping cylinder are all driven by the hydraulic control console.
[0012] (III) Beneficial Effects
[0013] Compared with the prior art, this utility model provides a trolley traveling mechanism that utilizes hydraulic movement, which has the following beneficial effects:
[0014] 1. The hydraulically driven trolley traveling mechanism, during jacking, drives the secondary beam to move upward through the jacking cylinder, and the slide bar moves upward accordingly. Then, an adjustment block is added between the secondary beam and the gantry crossbeam. The adjustment block is detachably connected to the secondary beam and the gantry crossbeam. The adjustment block has three specifications and sizes, and the three can be assembled with each other, thereby realizing the overall upward adjustment of the bottom mold position.
[0015] 2. The hydraulically driven trolley traveling mechanism, when moving laterally, the entire weight of the trolley rests on the lateral sliding rail. The lateral sliding block is driven to move in the lateral sliding rail by the lateral sliding cylinder (i.e., the output end of the lateral sliding cylinder on one side extends and the output end of the lateral sliding cylinder on the other side retracts). Then the entire trolley moves slowly laterally along the lateral sliding rail, thereby realizing the overall lateral adjustment of the bottom mold position.
[0016] 3. The trolley traveling mechanism utilizes hydraulic movement. During travel, the lifting cylinder drives the sliding column to move upward, and the transverse sliding block, transverse sliding rail, and transverse sliding cylinder follow suit. The weight of the entire trolley rests on the four forward sliding blocks (i.e., the forward sliding blocks cannot move). By controlling the stepping cylinder, the trolley is retracted, and the stepping cylinder pulls the entire trolley forward along the forward sliding blocks. Then, the lifting cylinder lowers the transverse sliding rail to support the entire trolley, and then the stepping cylinder is controlled to expand. This process is repeated to control the movement of the entire trolley, thus facilitating the construction of the next bridge. Attached Figure Description
[0017] Figure 1 This is a schematic diagram of the trolley cross-section without the adjusting block according to this utility model;
[0018] Figure 2 This is a schematic diagram of the cross-section of the trolley with the 1.5-meter height adjustment block of this utility model;
[0019] Figure 3 This is a schematic diagram of the cross-section of the trolley with the 4.5-meter height adjustment block of this utility model;
[0020] Figure 4 This is a schematic diagram of the side structure of the trolley without adjustment blocks according to this utility model;
[0021] Figure 5 This is a schematic diagram of the side structure of the trolley with the 1.5-meter height adjustment block of this utility model;
[0022] Figure 6 This is a schematic diagram of the side structure of the trolley with the 4.5-meter height adjustment block of this utility model;
[0023] Figure 7 This is a schematic diagram of the structure of the transverse moving component of this utility model;
[0024] Figure 8 This is a schematic diagram of the forward-moving component of this utility model.
[0025] In the diagram: 1. Gantry column; 2. Gantry beam; 3. Secondary beam; 4. Distribution beam; 5. Bottom formwork; 6. Side formwork; 7. Upper tie rod; 8. Cross beam; 9. Sliding rod; 10. Sliding sleeve; 11. Lifting cylinder; 12. Adjusting block; 13. Lifting cylinder; 14. Sliding column; 15. Lateral slide; 16. Lateral slide rail; 17. Lateral cylinder; 18. Stepping cylinder; 19. Forward slide; 20. Forward beam; 21. Lateral guide rail; 22. Lateral connecting rod. Detailed Implementation
[0026] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0027] Please see Figure 1-6A hydraulically driven trolley traveling mechanism includes four gantry columns 1. A gantry beam 2 is fixedly installed on the top of the gantry columns 1. The top of the gantry beam 2 is connected to a secondary beam 3 through an auxiliary component. A distribution beam 4 is fixedly installed on the top of the secondary beam 3. A bottom mold 5 is fixedly installed on the top of the distribution beam 4. Fences are also provided on both sides of the bottom mold 5 to facilitate personnel movement. Side molds 6 are fixedly installed on both sides of the bottom mold 5. A top tie rod 7 is detachably installed on the top of the side molds 6 to ensure that the side molds 6 on both sides do not deform.
[0028] Please see Figure 1-6 A cross beam 8 is fixedly installed between the front and rear gantry columns 1 to increase the stability between the gantry columns 1; a horizontal movement component is set at the four corners of the bottom of the gantry column 1 to adjust the horizontal movement of the entire trolley; a forward movement component is set on the middle crossbeam below the gantry column 1 to control the movement position of the entire trolley and facilitate its movement to the next pier; a lifting component is set on the inner side of the gantry column 1 to control the height position of the bottom formwork 5 and ensure the bridge is constructed horizontally.
[0029] Please see Figure 1-6 The auxiliary component consists of a sliding rod 9 and a sliding sleeve 10. The sliding rod 9 slides through the sliding sleeve 10, which is fixedly installed on the gantry beam 2. The sliding rod 9 is fixedly installed at the bottom of the secondary beam 3. A locking device is installed on the gantry beam 2 below the sliding sleeve 10 to prevent the sliding rod 9 from sliding down.
[0030] Please see Figure 1-6 The lifting assembly consists of a lifting cylinder 11 and a lifting head. The lifting head is fixedly installed on the output end of the lifting cylinder 11. The lifting cylinder has a working stroke of 500mm, balancing adjustment efficiency and accuracy. The lifting cylinder 11 is fixedly installed on the inner side of the gantry column 1, and the lifting head presses against the bottom of the secondary beam 3. When the lifting cylinder 11 drives the secondary beam 3 to rise by 0.5 meters, it retains a 100mm spare stroke to cope with construction errors or emergency adjustments. Adjusting blocks 12 are filled between the secondary beam 3 and the gantry crossbeam 2. The adjusting blocks 12 are available in heights of 1.5 meters, 1 meter, or 0.5 meters, and are detachably connected to both the secondary beam 3 and the gantry crossbeam 2.
[0031] Please see Figure 7 The lateral movement assembly includes a lifting cylinder 13, and a sliding column 14 is fixedly installed at the output end of the lifting cylinder 13. The sliding column 14 is slidably installed on the surface of the gantry column 1 through a fixed sleeve. A lateral movement slide block 15 is hinged to the sliding column 14. A lateral movement slide rail 16 is slidably installed on the outer side of the lateral movement slide block 15. A lateral movement cylinder 17 is hinged between the lateral movement slide rail 16 and the lateral movement slide block 15. A lateral movement connecting rod 22 is hinged between the lateral movement slide rail 16 and between the lateral movement slide block 15, which is used to ensure that the two lateral movement slide blocks 15 on one side or the two lateral movement slide rails 16 on one side move synchronously.
[0032] Please see Figure 8 The forward movement assembly includes a stepping cylinder 18. One end of the stepping cylinder 18 is hinged to the middle crossbeam below the gantry column 1, and the other end of the stepping cylinder 18 is hinged to a forward movement slide 19. A forward movement beam 20 is fixedly installed on the side of the forward movement slide 19. Both ends of the forward movement beam 20 are slidably connected to the transverse guide rail 21 through the forward movement slide 19. The transverse guide rail 21 is fixedly installed on the bottom of the middle crossbeam below the gantry column 1.
[0033] Please see Figure 1-6 The lifting cylinder 11, the lifting cylinder 13, the lateral cylinder 17, and the stepping cylinder 18 are all driven by the hydraulic control console. The lifting cylinder 11, the lifting cylinder 13, the lateral cylinder 17, the stepping cylinder 18, and the hydraulic control console are all references to existing technology, and will not be described in detail here. When using them, the preferred method can be selected provided that the driving conditions are met. Furthermore, the aforementioned components are also controlled by a PLC controller, facilitating intelligent control of the entire trolley's movement.
[0034] Working principle: During use, when lifting, the secondary beam 3 is driven to move upward by the lifting cylinder 11, and the slide rod 9 moves upward accordingly. Then, an adjustment block 12 is added between the secondary beam 3 and the gantry beam 2. The adjustment block 12 is detachably connected to the secondary beam 3 and the gantry beam 2. The adjustment block 12 has three specifications and sizes, which can be assembled with each other, thereby realizing the overall upward adjustment of the bottom mold 5.
[0035] During the transverse movement, the weight of the entire trolley rests on the transverse slide rail 16. The transverse slide block 15 is driven to move in the transverse slide rail 16 by the transverse hydraulic cylinder 17 (i.e., the output end of the transverse hydraulic cylinder 17 on one side extends and the output end of the transverse hydraulic cylinder 17 on the other side retracts). Then, the entire trolley slowly moves transversely along the transverse slide rail 16, thereby realizing the overall transverse adjustment of the bottom mold 5.
[0036] If the lateral movement distance is large, the lateral movement component must be used in conjunction with the forward movement component. For example, the lifting cylinder 13 drives the lateral movement slide rail 16 to move upward, and the support point falls on the forward movement slide 19. The lateral movement cylinder 17 drives the lateral movement slide rail 16 to move to the end. Then the lifting cylinder 13 drives the lateral movement slide rail 16 to move downward, and the support point falls on the lateral movement slide rail 16. After that, the lateral movement cylinder 17 drives the entire trolley to move laterally. This process is repeated to achieve a large lateral movement.
[0037] When moving, the lifting cylinder 13 drives the sliding column 14 to move upward, and the transverse sliding block 15, transverse sliding rail 16 and transverse sliding cylinder 17 follow suit. The weight of the entire trolley rests on the four forward sliding blocks 19 (i.e., the forward sliding blocks 19 cannot move). By controlling the stepping cylinder 18 to retract, the stepping cylinder 18 pulls the entire trolley forward along the forward sliding blocks 19. Then, the lifting cylinder 13 lowers the transverse sliding rail 16 to support the entire trolley, and then controls the stepping cylinder 18 to expand. By repeating this process, the movement of the entire trolley can be controlled, which facilitates the construction of the next bridge.
[0038] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. A hydraulically driven trolley traveling mechanism, comprising four gantry columns (1), a gantry beam (2) fixedly installed on the top of each gantry column (1), the top of the gantry beam (2) being connected to a secondary beam (3) via an auxiliary component, a distribution beam (4) fixedly installed on the top of the secondary beam (3), a bottom mold (5) fixedly installed on the top of the distribution beam (4), side molds (6) fixedly installed on both sides of the bottom mold (5), an upper tie rod (7) detachably installed on the top of the side mold (6), and a cross beam (8) fixedly installed between the front and rear gantry columns (1), characterized in that: The bottom four corners of the gantry column (1) are provided with horizontal moving components, the middle crossbeam below the gantry column (1) is provided with forward moving components, and the inner side of the gantry column (1) is provided with lifting components.
2. A hydraulic walk mechanism for a dolly according to claim 1, wherein: The auxiliary component consists of a slide rod (9) and a sliding sleeve (10). The slide rod (9) slides through the sliding sleeve (10). The sliding sleeve (10) is fixedly installed on the gantry beam (2). The slide rod (9) is fixedly installed at the bottom of the secondary beam (3).
3. A hydraulic walk mechanism for a dolly according to claim 1, wherein: The lifting assembly consists of a lifting cylinder (11) and a lifting head. The lifting head is fixedly installed on the output end of the lifting cylinder (11). The lifting cylinder (11) is fixedly installed on the inner side of the gantry column (1). The lifting head presses against the bottom of the secondary beam (3). When the lifting cylinder (11) drives the secondary beam (3) to rise by 0.5 meters, an adjusting block (12) is filled between the secondary beam (3) and the gantry crossbeam (2). The adjusting block (12) has a height of 1.5 meters, 1 meter, or 0.5 meters, and the adjusting block (12) is detachably connected to the secondary beam (3) and the gantry crossbeam (2), respectively.
4. A hydraulic walk mechanism for a dolly according to claim 3, wherein: The lateral movement assembly includes a lifting cylinder (13), and a sliding column (14) is fixedly installed at the output end of the lifting cylinder (13). The sliding column (14) is slidably installed on the surface of the gantry column (1) through a fixed sleeve. A lateral movement slide (15) is hinged to the sliding column (14). A lateral movement rail (16) is slidably installed on the outer side of the lateral movement slide (15). A lateral movement cylinder (17) is hinged between the lateral movement rail (16) and the lateral movement slide (15). A lateral movement connecting rod (22) is hinged between the lateral movement rail (16) and between the lateral movement slide (15).
5. A hydraulic walk mechanism for a cart according to claim 4, wherein: The forward movement assembly includes a stepping cylinder (18), one end of which is hinged to the middle crossbeam below the gantry column (1), and the other end of which is hinged to a forward movement slide (19). A forward movement beam (20) is fixedly installed on the side of the forward movement slide (19), and both ends of the forward movement beam (20) are slidably connected to the transverse guide rail (21) through the forward movement slide (19). The transverse guide rail (21) is fixedly installed on the bottom of the middle crossbeam below the gantry column (1).
6. A hydraulic walk mechanism for a cart according to claim 5, wherein: The lifting cylinder (11), the lifting cylinder (13), the lateral cylinder (17), and the stepping cylinder (18) are all driven by the hydraulic control console.