Hydraulic engine for crawler-type self-dumping semitrailer

Abstract

The utility model relates to the technical field of crawler-type self-dumping semitrailers, in particular to a hydraulic engine for a crawler-type self-dumping semitrailer. The crankshaft comprises a plurality of groups of crank throws which are uniformly arranged at intervals, the inner ends of the crank throws are respectively connected through main journals, the inner ends of the two groups of crank throws on the outer side are respectively provided with an end shaft, the axial lead of each main journal and the axial lead of the two end shafts are collinear, and the crank throws are sequentially and continuously deflected in the circumferential direction of the main journals. The oil cylinders are used for replacing a motor for driving, the number of the oil cylinders can be adjusted according to the load of a vehicle, the adaptation degree is high, and power is provided for the self-unloading device through cooperation of the multiple oil cylinders; the cost of the oil cylinder is low, the maintenance and replacement cost is effectively reduced, the manufacturing cost of the semitrailer can be obviously reduced, and the purchasing willingness of a common purchaser is improved, so that the application range of the crawler-type self-dumping semitrailer is effectively widened, the crawler-type self-dumping semitrailer is favorably popularized and used in the market, and many problems existing in the prior art are solved.

Description

Technical Field

[0001] The utility model relates to the technical field of crawler-type dump semi-trailers, in particular to a hydraulic engine for crawler-type dump semi-trailers. Background Art

[0002] Crawler dump trailers have the advantages of high safety factor, light weight, high degree of automation, convenient operation, and no rollover. They have replaced traditional dump trucks and become the main force in transporting bulk goods such as sand, coal, grain, asphalt, and clinker. The dump device used in crawler dump trailers mainly relies on the motor to provide power, and drives the chain through the shaft and gears to achieve the function of cargo self-unloading. However, the motor of this type of crawler dump trailer is expensive, the maintenance and replacement cost is large, and the larger the cargo load, the more expensive the motor is, which is far from what ordinary buyers are willing to bear. Therefore, the application of this type of crawler dump trailer is relatively narrow and cannot be promoted. Utility Model Content

[0003] The utility model discloses a kind of crawler type dump semi-trailer hydraulic engine, and its structure is reasonable and its installation is convenient. It is driven by oil cylinders instead of motors, and the number of oil cylinders can be adjusted according to the load of the vehicle. The adaptability is high, and the self-unloading device is powered by a plurality of oil cylinders. Moreover, the power generated by the simultaneous exertion of force by a plurality of oil cylinders is several times greater than that of the motor. The slow rotation of the crankshaft is achieved by the extension and retraction of the oil cylinder piston rod, so that heavy loads can be easily handled and the service life is effectively improved. At the same time, the oil cylinder has a low cost, which effectively reduces the cost of maintenance and replacement, can significantly reduce the cost of the semi-trailer, and improve the purchasing intention of ordinary buyers, thereby effectively broadening the application of the crawler type dump semi-trailer, which is conducive to its popularization and use in the market and solves many problems existing in the prior art.

[0004] The technical solution adopted by the utility model to solve the above technical problems is:

[0005] A hydraulic engine for a crawler-type dump trailer comprises a crankshaft, wherein the crankshaft comprises a plurality of groups of cranks evenly spaced apart, the inner ends of each group of cranks being connected via main journals, end shafts being respectively arranged at the inner ends of the two outer groups of cranks, the axis center lines of each main journal being colinear with the axis center lines of the two end shafts, each group of cranks being continuously deflected in the circumferential direction of the main journals in turn, the cranks comprising symmetrically arranged cranks and connecting rod journals connected to the outer ends of the two cranks, a driving mechanism being arranged on each group of cranks, and fixing plates being respectively sleeved on the end shafts on both sides of the crankshaft.

[0006] Optionally, the driving mechanism includes support arms symmetrically arranged on the outside of the two cranks, the inner ends of the two support arms are respectively fixedly sleeved on the main shaft neck on the corresponding side, and a cylinder is provided between the two support arms. The cylinder is movably hinged to the outer end of the support arm on the corresponding side through rotating shafts symmetrically arranged on both sides thereof, and a sleeve movably sleeved on the connecting rod journal is provided at the end of the piston rod of the cylinder; the extension line of the axial centerline of the cylinder piston rod does not intersect with the axial centerline of the main shaft neck.

[0007] Optionally, two adjacent groups of driving mechanisms are connected by a reinforcement member, which includes a reinforcement plate sleeved on the main shaft neck between two adjacent groups of cranks, and fixed shafts connected to the outer ends of corresponding side arms are respectively provided on the side walls on both sides of the outer end of the reinforcement plate.

[0008] Optionally, a plurality of reinforcement rods penetrating the reinforcement plates are horizontally arranged between the two fixing plates.

[0009] Optionally, each group of cranks is arranged in an oscillating wave pattern on the side of the crankshaft, and the angle formed by the cylinder axis of the upper crank and the cylinder axis of the lower crankshaft is less than 180 degrees.

[0010] Optionally, the deflection angle of each set of bell cranks is 60 degrees.

[0011] The utility model adopts the above technical scheme, and has the advantages of reasonable structural design and convenient installation. It uses oil cylinders instead of motors for driving, and the number of oil cylinders can be adjusted according to the load of the vehicle. It has a high adaptability. The self-unloading device is powered by multiple oil cylinders. Moreover, the power generated by the simultaneous force of multiple oil cylinders is several times greater than that of the motor. The slow rotation of the crankshaft is achieved by the extension and retraction of the oil cylinder piston rod, so that heavy loads can be easily handled and the service life is effectively improved. At the same time, the cost of the oil cylinder is low, which effectively reduces the cost of maintenance and replacement, can significantly reduce the cost of the semi-trailer, and improve the purchasing willingness of ordinary buyers, thereby effectively broadening the application of crawler dump semi-trailers and facilitating their promotion and use in the market. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a three-dimensional structural schematic diagram of the utility model;

[0013] Figure 2 for Figure 1 A schematic diagram of a three-dimensional structure without the fixing plate and the reinforcement rod;

[0014] Figure 3 for Figure 2 A side view schematic diagram of the structure;

[0015] Figure 4 Schematic diagram of the three-dimensional structure of the crankshaft;

[0016] Figure 5It is a schematic diagram of the three-dimensional structure of the reinforcement;

[0017] Figure 6 is a schematic diagram of the three-dimensional structure of the driving mechanism;

[0018] In the figure, 1, crank; 101, crank; 102, connecting rod journal; 2, main journal; 3, end shaft; 4, fixed plate; 5, support arm; 6, cylinder; 7, rotating shaft; 8, sleeve; 9, reinforcement; 901, reinforcement plate; 902, fixed shaft; 10, reinforcement rod. DETAILED DESCRIPTION

[0019] In order to clearly illustrate the technical features of the present solution, the present invention is described in detail below through specific implementation methods and in conjunction with the accompanying drawings. In the following description, many specific details are described to facilitate a full understanding of the present application. However, the present application can also be implemented in other ways different from those described herein. Therefore, the protection scope of the present application is not limited by the specific embodiments disclosed below.

[0020] In addition, in the description of the present application, it should be understood that the terms "center", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "axial", "radial", "circumferential" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present application. In addition, the terms "first" and "second" are used only for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, the features defined as "first" and "second" may explicitly or implicitly include one or more of such features. In the description of the present application, the meaning of "multiple" is two or more, unless otherwise clearly and specifically defined.

[0021] In this application, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, they can be fixedly connected, detachably connected, or integrated. For those of ordinary skill in the art, the specific meanings of the above terms in this application can be understood according to the specific circumstances. In the description of this specification, the descriptions with reference to the terms "one embodiment", "some embodiments", "examples", "specific examples", or "some examples" and the like mean that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present application. 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 can be combined in a suitable manner in any one or more embodiments or examples.

[0022] like Figure 1-6 As shown, a hydraulic engine for a crawler dump trailer includes a crankshaft, wherein the crankshaft includes a plurality of groups of cranks 1 evenly spaced apart, the inner ends of each group of cranks 1 are connected via main journals 2, end shafts 3 are provided at the inner ends of the two outer groups of cranks 1, the axis line of each main journal 2 is colinear with the axis line of the two end shafts 3, each group of cranks 1 is continuously deflected along the circumferential direction of the main journal 2, the crank 1 includes symmetrically arranged cranks 101 and connecting rod journals 102 connected to the outer ends of the two cranks 101, a driving mechanism is provided on each group of cranks 1, and fixing plates 4 are respectively sleeved on the end shafts 3 on both sides of the crankshaft.

[0023] Optionally, the driving mechanism includes support arms 5 symmetrically arranged on the outside of the two cranks 101, the inner ends of the two support arms 5 are respectively fixedly sleeved on the main journal 2 on the corresponding side, and a cylinder 6 is provided between the two support arms 5. The cylinder 6 is movably hinged to the outer end of the support arm 5 on the corresponding side through a rotating shaft 7 symmetrically arranged on both sides thereof, and a sleeve 8 movably sleeved on the connecting rod journal 102 is provided at the end of the piston rod of the cylinder 6; the extension line of the axial centerline of the piston rod of the cylinder 6 does not intersect with the axial centerline of the main journal 2.

[0024] Optionally, two adjacent groups of driving mechanisms are connected by a reinforcement member 9, and the reinforcement member 9 includes a reinforcement plate 901 sleeved on the main journal 2 between two adjacent groups of cranks 1, and a fixing shaft 902 connected to the outer end of the corresponding side arm 5 is respectively provided on the side walls on both sides of the outer end of the reinforcement plate 901. The two adjacent arms 5 can be fixed by the reinforcement member 9, and then the two groups of cranks 1 can be fixed. Each group of cranks 1 is fixed into a whole by the reinforcement member 9, which can significantly improve the stability of operation.

[0025] Optionally, a plurality of reinforcing rods 10 penetrating the reinforcing plates 901 are horizontally arranged between the two fixing plates 4. Through the reinforcing rods 10, the reinforcing plates 901 at the same position can be connected in series and fixed to the fixing plates 4, further improving the stability of the connection of each group of cranks 1.

[0026] Optionally, each group of cranks 1 is arranged in an oscillating wave pattern on the side of the crankshaft, and the angle formed by the axis centerline of the cylinder 6 of the upper crankshaft 1 and the axis centerline of the cylinder 6 of the lower crankshaft 1 is less than 180 degrees.

[0027] Optionally, the deflection angle of each group of bell cranks 1 is 60 degrees.

[0028] When the device is in use, the two end shafts 3 of the crankshaft are connected to the chain through gears. When the crankshaft needs to rotate, the piston rods of each group of oil cylinders 6 extend outward in turn, and push the connecting rod journal 102 to rotate along the main journal 2 through the sleeve 8, while the oil cylinder 6 rotates along the rotating shaft 7 between the two support arms 5, so that the piston rod is extended to the longest. The reason why the extension line of the axis of the piston rod of the oil cylinder 6 does not intersect with the axis of the main journal 2 is that the piston rod of the oil cylinder 6 is perpendicular to the connecting rod journal 102, and the crank 1 and the support arm 5 are respectively perpendicular to the main journal 2. If the three are all arranged in a collinear manner, the extension of the piston rod of the oil cylinder 6 is blocked and the action cannot be completed. After the piston rod of the oil cylinder 6 is fully extended, as the other oil cylinders 6 continue to move, the oil cylinder 6 smoothly passes the collinear position of the oil cylinder 6, the crank 1, and the support arm 5. At this time, the oil cylinder 6 performs a contraction movement, so that the connecting rod journal 102 drives the main journal 2 to continue to rotate. According to the above steps, the oil cylinder 6 continuously provides power for the crankshaft to rotate, so that the crankshaft can rotate slowly, and the "slow force" formed is fully capable of driving the chain to push the goods outward. It has a reasonable structural design and is easy to install. It uses oil cylinders instead of motors for driving. The number of oil cylinders can be adjusted according to the load of the vehicle. It has a high degree of adaptability. Multiple oil cylinders cooperate to provide power for the self-unloading device. In addition, the power generated by the simultaneous force of multiple oil cylinders is far more than several times that of the motor. The slow rotation of the crankshaft is achieved through the extension and contraction of the oil cylinder piston rod, so that it can easily cope with heavy-loaded goods and effectively improve the service life. At the same time, the cost of the oil cylinder is low, which effectively reduces the cost of maintenance and replacement, can significantly reduce the cost of semi-trailers, and improve the purchasing willingness of ordinary buyers, thereby effectively broadening the application of crawler dump semi-trailers, which is conducive to promoting and using them in the market and solving many problems existing in the prior art.

[0029] The above embodiments are only used to illustrate the technical solution of the utility model, rather than to limit it; although the utility model is described in detail with reference to the above embodiments, ordinary technicians in this field should understand that they can still modify the technical solutions recorded in the above embodiments, or replace some or all of the technical features therein by equivalents; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the utility model, and they should all be included in the scope of the claims and description of the utility model; for technicians in this technical field, any replacement improvements or changes made to the implementation methods of the utility model fall within the protection scope of the utility model. The parts not described in detail in the utility model are all well-known technologies of technicians in this technical field.

Claims

1. A hydraulic engine for a crawler dump trailer, characterized in that: The crankshaft comprises a plurality of groups of cranks evenly spaced apart, the inner ends of each group of cranks being connected through main journals, end shafts being respectively arranged at the inner ends of the two outer groups of cranks, the axis line of each main journal being colinear with the axis line of the two end shafts, and each group of cranks being continuously deflected along the circumferential direction of the main journals in turn, the cranks comprising symmetrically arranged cranks and connecting rod journals connected to the outer ends of the two cranks, a driving mechanism being arranged on each group of cranks, the driving mechanism comprising support arms symmetrically arranged on the outer sides of the two cranks, the inner ends of the two support arms being respectively fixedly sleeved on the main journals on the corresponding sides, a cylinder being arranged between the two support arms, the cylinder being movably hinged to the outer ends of the support arms on the corresponding sides through rotating shafts symmetrically arranged on both sides thereof, and a sleeve being movably sleeved on the connecting rod journal being arranged at the end of the piston rod of the cylinder; the extension line of the axis line of the piston rod of the cylinder does not intersect with the axis line of the main journal, and fixing plates are respectively sleeved on the end shafts on both sides of the crankshaft.

2. The hydraulic engine for a crawler dump trailer according to claim 1, characterized in that: Two adjacent groups of driving mechanisms are connected by a reinforcement member, which includes a reinforcement plate sleeved on the main shaft neck between two adjacent groups of cranks, and fixed shafts connected to the outer ends of corresponding side arms are respectively provided on the side walls on both sides of the outer ends of the reinforcement plate.

3. The hydraulic engine for a crawler dump trailer according to claim 2, characterized in that: A plurality of reinforcing rods penetrating the reinforcing plates are horizontally arranged between the two fixing plates.

4. The hydraulic engine for a crawler dump trailer according to claim 1, characterized in that: Each group of cranks is arranged in an oscillating wave pattern on the side of the crankshaft, and the angle formed by the cylinder axis of the upper crank and the cylinder axis of the lower crankshaft is less than 180 degrees.

5. A hydraulic engine for a crawler dump trailer according to claim 1 or 4, characterized in that: The deflection angle of each set of bell cranks is 60 degrees.

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