Hydraulic control device and movable crushing and screening station

Abstract

The utility model provides a hydraulic control device and a mobile crushing and screening station, which comprise a hydraulic pump, a hydraulic hose and a hydraulic driving mechanism used for controlling the traversing or folding action of a traversing conveyor, and the hydraulic driving mechanism is connected with the hydraulic pump through the hydraulic hose; the hydraulic control device further comprises a bundling guide mechanism used for controlling the trend and bending of the hydraulic hose, the bundling guide mechanism comprises a guide rail, a drag chain and a supporting plate, and the drag chain is arranged on the outer side of the hydraulic hose in a sleeving mode and is coupled with the guide rail. Guiding and bending of the hydraulic hose are controlled through cooperation of the drag chain and the guide rail, the allowance of the hydraulic hose at the bending position of the conveyor is limited through the supporting plate, and the risk that the hydraulic hose is abraded when the ground clearance of the conveyor is small is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of construction machinery, in particular to a hydraulic control device and a mobile crushing and screening station. Background Art

[0002] In the hydraulic system of a mobile crushing and screening station, structural actuators such as conveyors often need to perform multiple actions such as lifting, lateral movement, and folding. In practical applications, in order to ensure the smooth movement of the conveyor, sufficient margins are usually left for hydraulic hoses at the lifting or folding hinge points and at the relative movement limits of lateral movement. Since the hydraulic hoses at these moving parts are often placed suspended without being fixed, when the height of the conveyor from the ground is too low or the lateral movement distance is long, the suspended hydraulic hoses are very likely to rub against the ground or other objects, resulting in wear or even damage to the hoses. This not only increases the maintenance cost of the equipment but also may pose a threat to the stability and safety of the entire system. At the same time, the lateral movement distance of the conveyor is sometimes long and often needs to move laterally to both sides respectively. Due to the limitation of the installation distance of the oil cylinder, ordinary oil cylinders often cannot meet the requirements of such actions. Summary of the Utility Model

[0003] To solve the above problems in the prior art, a first aspect of the utility model provides a hydraulic control device, including a hydraulic pump, a hydraulic hose, and a hydraulic driving mechanism for controlling the lateral movement or folding action of a lateral movement conveyor. The hydraulic driving mechanism is connected to the hydraulic pump through the hydraulic hose; the hydraulic control device further includes a bunching and guiding mechanism for controlling the orientation and bending of the hydraulic hose. The bunching and guiding mechanism includes a guide rail, a drag chain, and a support plate. The drag chain is sleeved outside the hydraulic hose and coupled with the guide rail.

[0004] Further, both the guide rail and the support plate are fixed on the lateral movement conveyor, and a guiding groove for accommodating the drag chain is provided on the guide rail.

[0005] Further, the drag chain includes a plurality of mutually hinged drag chain sections. One end of the drag chain is fixed on the vehicle frame, and the other end is fixedly connected to the guide rail, so that when the vehicle frame and the guide rail move relative to each other, the drag chain can be flattened or bent in the guide rail.

[0006] Further, the hydraulic driving mechanism includes a folding oil cylinder for controlling the upward folding of the lateral movement conveyor and a lateral movement oil cylinder for controlling the lateral movement of the lateral movement conveyor to both sides of the vehicle frame.

[0007] Further, the lateral movement conveyor is a telescopic structure, the lateral movement oil cylinder is a two-stage oil cylinder, and one end of the lateral movement oil cylinder is rotatably connected to the vehicle frame, and the other end is rotatably connected to the lateral movement conveyor.

[0008] Further, the transverse conveyor is hinged to the vehicle frame. One end of the folding oil cylinder is rotatably connected to the vehicle frame, and the other end is rotatably connected to the transverse conveyor.

[0009] The second aspect of the present utility model provides a mobile crushing and screening station, which includes a vehicle frame, a transverse conveyor, and the hydraulic control device as described above. The transverse conveyor is respectively arranged on the side of the vehicle frame and is hinged to the vehicle frame.

[0010] Further, the transverse conveyor includes a hydraulic drive motor and a conveyor belt. The hydraulic drive motor is arranged at both ends of the transverse conveyor for driving the conveyor belt to rotate.

[0011] Compared with the prior art, the present utility model mainly has the following advantages:

[0012] 1. By providing a guide rail and a support plate on the transverse conveyor, the drag chain is placed on the guide rail, and the cooperation of the drag chain and the guide rail realizes the control of the guiding and bending of the hydraulic hose. The surplus of the hydraulic hose at the bending part of the conveyor is limited by the support plate, avoiding the risk of wear of the hydraulic hose dragging on the ground when the height of the conveyor from the ground is relatively low, and at the same time solving the problem of the hydraulic system failure caused by the mutual entanglement of the hydraulic hoses.

[0013] 2. The present utility model uses a two-stage oil cylinder as the transverse movement oil cylinder of the conveyor, which can achieve a long stroke while having a short installation distance, saving the installation space; BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 is a top view of the mobile crushing and screening station of the present utility model;

[0015] Figure 2 is a front view of the mobile crushing and screening station of the present utility model;

[0016] Figure 3 is a schematic structural diagram of the transverse movement oil cylinder of the present utility model;

[0017] Figure 4 is a schematic structural diagram of the hydraulic control device of the present utility model;

[0018] In the figure: 1. Vehicle frame; 11. First fixed seat; 12. First hinge seat; 2. Transverse conveyor; 21. First connection hole; 22. Second connection hole; 23. Second hinge seat; 3. Hydraulic hose; 4. Hydraulic drive motor; 5. Guide rail; 51. Second fixed seat; 52. Guide rail mounting plate; 6. Drag chain; 61. Drag chain mounting plate; 7. Support plate; 8. Folding oil cylinder; 9. Transverse movement oil cylinder. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0019] To make the objectives, technical solutions, and advantages of the embodiments of the present utility model clearer, the technical solutions in the embodiments will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. The following embodiments are used to illustrate the present utility model but are not intended to limit the scope of the present utility model.

[0020] As Figure 3-4 shown, the present utility model provides a hydraulic control device, including a hydraulic pump, a hydraulic hose 3, and a hydraulic drive mechanism for controlling the transverse movement or folding action of a transverse conveyor 2. The hydraulic drive mechanism is connected to the hydraulic pump through the hydraulic hose 3. The hydraulic control device further includes a bundling and guiding mechanism for controlling the routing and bending of the hydraulic hose 3, including a guide rail 5, a drag chain 6, and a support plate 7. The drag chain 6 is sleeved outside the hydraulic hose 3 and coupled with the guide rail 5. The cooperation between the drag chain 6 and the guide rail 5 realizes the control of the routing and bending of the hydraulic hose 3, avoiding the risk of the hydraulic hose 3 being dragged and worn when the height of the conveyor 2 from the ground is relatively low, and at the same time solving the problem of the hydraulic hose 3 being entangled with each other and causing hydraulic system failures.

[0021] In some embodiments, through holes are provided on the side plates at both ends of the guide rail 5. The guide rail 5 is fixed to the first connection hole 21 of the transverse conveyor 2 through a guide rail mounting plate 52 and bolts to realize synchronous movement with the transverse conveyor 2. A guide groove for accommodating the drag chain 6 is provided on the guide rail 5, and the guide groove extends along the axial direction of the guide rail 5. Preferably, the guide groove is a U-shaped groove. A plurality of uniformly arranged strip holes are provided at the bottom of the guide groove. The strip holes can reduce the weight of the guide rail 5 and save manufacturing costs; at the same time, they can also provide drainage or ventilation channels to prevent water accumulation from damaging the drag chain 6.

[0022] In some embodiments, the support plate 7 is of a U-shaped structure, and through holes are provided on the side plates at both ends of the support plate 7. The support plate 7 is fixed to the second connection hole 22 of the transverse conveyor 2 through bolts, thereby forming a channel for the hydraulic hose 3 to pass through between the support plate 7 and the transverse conveyor 2. When the transverse conveyor 2 is turned up and folded, the support plate 7 can control the routing and bending of the hydraulic hose 3 at the folding part to prevent the hydraulic hose 3 from bulging outwards and rubbing against other objects.

[0023] In some embodiments, a cavity for a hydraulic hose 3 to pass through is provided in the middle of the drag chain 6. The drag chain 6 includes a number of drag chain segments, and the number of drag chain segments are hinged end to end to form a chain structure. This enables the drag chain 6 to bend and stretch freely along with the movement of the machine while maintaining sufficient strength and stability. One end of the drag chain 6 is fixedly connected to the first fixed seat 11 of the vehicle frame 1 through a drag chain mounting plate 61, and the other end is fixedly connected to the second fixed seat 51 of the guide rail 5. When the hydraulic drive mechanism drives the transverse conveyor 2 to move relative to the vehicle frame 1, the guide rail 5 moves synchronously with the transverse conveyor 2. The guide rail 5 drives one end of the drag chain 6 to move, causing the drag chain 6 to flatten or bend in the U-shaped groove of the guide rail 5. Thereby restricting the routing and bending of the hydraulic hose 3 and preventing it from shifting. This not only protects the hydraulic hose 3 from damage by the external environment, such as abrasion and extrusion, but also ensures the smoothness of the hose during movement.

[0024] In some embodiments, the hydraulic drive mechanism includes a folding oil cylinder 8 for controlling the upward folding of the transverse conveyor 2 and a transverse movement oil cylinder 9 for controlling the transverse movement of the transverse conveyor 2 to both sides of the vehicle frame 1. The transverse conveyor 2 is a telescopic structure, and the transverse movement oil cylinder 9 is a two-stage oil cylinder installed with half of its stroke extended. One end of the transverse movement oil cylinder 9 is rotatably connected to the first hinge seat 12 of the vehicle frame 1 through a pin shaft, and the other end is rotatably connected to the second hinge seat 23 of the transverse conveyor 2 through a pin shaft. Through the telescopic movement of the transverse movement oil cylinder 9, the transverse conveyor 9 can be transversely moved a relatively large distance to both sides of the vehicle frame 1.

[0025] In some embodiments, the transverse conveyor 2 is hinged to the vehicle frame 1. One end of the folding oil cylinder 8 is rotatably connected to the vehicle frame 1, and the other end is rotatably connected to the transverse conveyor 2. When the folding oil cylinder 8 retracts, it controls the transverse conveyor 2 to turn up and fold.

[0026] As Figure 1-2 shown, the present utility model also provides a mobile crushing and screening station, which includes a vehicle frame 1, a transverse conveyor 2 and the hydraulic control device described above. The transverse conveyor 2 is respectively arranged on the sides of the vehicle frame 1 and is hinged to the vehicle frame 1. The transverse conveyor 2 includes a hydraulic drive motor 4 and a conveyor belt. The hydraulic drive motor 4 is arranged at both ends of the transverse conveyor 2 to drive the conveyor belt to rotate, thereby realizing the two-way rotation of the conveyor belt and discharging materials from both sides.

[0027] It can be understood that what is described in the specific implementation manners is only one embodiment of the present utility model. Those skilled in the art can make various changes or equivalent substitutions to these features and embodiments without departing from the spirit and scope of the present utility model. Additionally, under the teaching of the present utility model, these features and embodiments can be modified to adapt to specific situations and materials without departing from the spirit and scope of the present utility model. Therefore, the present utility model is not limited by the specific embodiments disclosed herein, and all embodiments falling within the scope of the claims of this application belong to the scope protected by the present utility model.

Claims

1. A hydraulic control device, characterized in that, It includes a hydraulic pump, a hydraulic hose (3), and a hydraulic drive mechanism for controlling the traversing or folding movement of the traversing conveyor (2). The hydraulic drive mechanism is connected to the hydraulic pump through the hydraulic hose (3); the hydraulic control device further includes a bunching and guiding mechanism for controlling the routing and bending of the hydraulic hose (3). The bunching and guiding mechanism includes a guide rail (5), a drag chain (6), and a support plate (7). The drag chain (6) is sleeved outside the hydraulic hose (3) and coupled with the guide rail (5).

2. The hydraulic control device according to claim 1, characterized in that, Both the guide rail (5) and the support plate (7) are fixed on the traversing conveyor (2), and a guide groove for accommodating the drag chain (6) is provided on the guide rail (5).

3. The hydraulic control device according to claim 2, wherein The drag chain (6) includes a number of mutually articulated drag chain links. One end of the drag chain (6) is fixed to the vehicle frame (1), and the other end is fixedly connected to the guide rail (5) so that when the vehicle frame (1) and the guide rail (5) move relative to each other, the drag chain (6) can be flattened or bent in the guide rail (5).

4. The hydraulic control device according to claim 1, characterized in that, The hydraulic drive mechanism includes a folding oil cylinder (8) for controlling the upward folding of the traversing conveyor (2) and a traversing oil cylinder (9) for controlling the traversing of the traversing conveyor (2) to both sides of the vehicle frame (1).

5. The hydraulic control device according to claim 4, wherein, The traversing conveyor (2) is a telescopic structure, the traversing oil cylinder (9) is a two-stage oil cylinder, one end of the traversing oil cylinder (9) is rotatably connected to the vehicle frame (1), and the other end is rotatably connected to the traversing conveyor (2).

6. The hydraulic control device according to claim 4, wherein The traversing conveyor (2) is hinged to the vehicle frame (1), one end of the folding oil cylinder (8) is rotatably connected to the vehicle frame (1), and the other end is rotatably connected to the traversing conveyor (2).

7. A mobile crushing and screening station, characterized in that, It includes a vehicle frame (1), a traversing conveyor (2), and the hydraulic control device according to any one of claims 1-6. The traversing conveyor (2) is respectively arranged on the side of the vehicle frame (1) and is hinged to the vehicle frame (1).

8. The mobile crushing and screening station according to claim 7, wherein The traversing conveyor (2) includes a hydraulic drive motor (4) and a conveyor belt. The hydraulic drive motor (4) is arranged at both ends of the traversing conveyor (2) for driving the conveyor belt to rotate.

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