Mounting structure of hydraulic station in grab bucket barrel

Abstract

Aiming at the problems that in the prior art, the gravity center of a grab bucket is high and the grab bucket is unstable when grabbing slope materials, the utility model provides the mounting structure of the hydraulic station in the grab bucket barrel, and a hydraulic pump and a motor of the hydraulic station are transversely fixed on the upper surface of an oil tank, so that the gravity center of the whole grab bucket is lowered, and the stability of the grab bucket when grabbing the slope materials is improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of grab buckets, and in particular relates to an installation structure of a hydraulic station in a grab bucket cylinder. Background Art

[0002] The electric hydraulic multi-flap grab is a mechanism for grabbing materials, which is widely used in steel mills, power plants, garbage treatment plants and other places. This grab can grab irregularly shaped materials such as scrap steel, slag, garbage, etc., and has the advantages of high grabbing efficiency and good grabbing effect.

[0003] An electric hydraulic multi-flap grab is usually composed of a central cylinder, multiple flaps, multiple cylinders and a hydraulic station. Each flank is driven by an independent cylinder, and each cylinder is supplied with oil by the hydraulic station in the central cylinder.

[0004] In order to ensure the strength of the central cylinder, the circumference of the existing cylinder is a closed structure, which results in a heavy weight of the central cylinder. Therefore, in order to reduce weight, the size of the cylinder is usually designed to be smaller, resulting in a smaller internal space.

[0005] The hydraulic station consists of an oil tank, a hydraulic pump for pumping oil from the oil tank to the cylinder, and a motor for driving the hydraulic pump.

[0006] Among them, the oil tank is welded and fixed at the lower end of the cylinder. Since the internal space of the cylinder is small, the hydraulic pump is immersed in the hydraulic oil in the oil tank, and the motor is fixed vertically on the upper surface of the oil tank and connected to the hydraulic pump in the hydraulic oil. This structure causes the center of gravity of the grab to be too high, which makes it unstable when grabbing slope materials. Utility Model Content

[0007] Based on this, in order to solve the above technical problems, a mounting structure of a hydraulic station in a grab bucket barrel is provided.

[0008] The technical solution adopted by the utility model is as follows:

[0009] A mounting structure of a hydraulic station in a grab bucket cylinder, the hydraulic station comprising an oil tank, a hydraulic pump for pumping oil from the oil tank to a grab bucket cylinder, a motor for driving the hydraulic pump, and a controller for controlling the motor, the oil tank being fixed to the lower end of the cylinder, the hydraulic pump, the motor and the controller being located in the cylinder and fixed to the oil tank, the output shaft of the motor being connected to the input shaft of the hydraulic pump, the controller being control-connected to the motor, characterized in that the hydraulic pump, the motor and the controller are all fixed to the upper surface of the oil tank, the hydraulic pump and the motor are both arranged transversely, the input end face of the hydraulic pump is in contact with the output end face of the motor, and the input shaft of the hydraulic pump is connected to the output shaft of the motor in the hydraulic pump or the motor.

[0010] The utility model provides an installation structure of a hydraulic station in a grab bucket cylinder, wherein a hydraulic pump and a motor of the hydraulic station are transversely fixed on the upper surface of an oil tank, thereby lowering the center of gravity of the entire grab bucket and improving the stability of the grab bucket when grabbing slope materials. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] The utility model is described in detail below with reference to the accompanying drawings and specific embodiments:

[0012] Figure 1 A schematic diagram of the structure of an installation structure of a hydraulic station in a grab bucket cylinder provided by an embodiment of the utility model;

[0013] Figure 2 It is a schematic diagram of the three-dimensional structure of the cylinder of an embodiment of the utility model;

[0014] Figure 3 It is a side view structural schematic diagram of the cylinder of an embodiment of the utility model;

[0015] Figure 4 It is a three-dimensional structural schematic diagram of a hydraulic station according to an embodiment of the utility model;

[0016] Figure 5 It is a vertical cross-sectional view of the hydraulic station according to an embodiment of the utility model. DETAILED DESCRIPTION

[0017] The following will illustrate the implementation methods of the utility model in conjunction with the drawings in the specification. It should be noted that the implementation methods involved in this specification are not exhaustive and do not represent the only implementation methods of the utility model. The following corresponding embodiments are only for the purpose of clearly illustrating the utility model content of the utility model patent, and are not intended to limit its implementation methods. For ordinary technicians in this field, different forms of changes and modifications can be made on the basis of the description of this embodiment. All obvious changes or modifications that belong to the technical concept and utility model content of the utility model are also within the scope of protection of the utility model.

[0018] like Figure 1 As shown, an embodiment of the present application provides an installation structure of a hydraulic station in a grab bucket cylinder, including a cylinder 1100 and a hydraulic station 1400.

[0019] The cylinder 1100 adopts an open structure, such as Figure 2 As shown, it specifically includes an upper bracket 1110 , a lower bracket 1120 and 6 bracket connectors 1130 .

[0020] The upper bracket 1110 and the lower bracket 1120 are both in a circular shape. The inner hole of the upper bracket 1110 serves as a lifting outlet. The upper bracket 1110 is provided with a lifting rope hole 1111 for installing a lifting rope 2. The lower bracket 1120 is arranged below the upper bracket 1110.

[0021] The six support connectors 1130 correspond one-to-one to the six bucket lobes and the six oil cylinders of the grab bucket, and the six support connectors 1130 are evenly arranged around the upper support 1110 and the lower support 1120 .

[0022] like Figure 2 and Figure 3 As shown, the bracket connector 1130 includes two connecting plates 1131 spaced apart from each other on the left and right sides, with a connecting rib 1132 between the two connecting plates 1131, the upper and lower ends of the connecting plates 1131 are respectively connected to the outer circumferential surfaces of the upper bracket 1110 and the lower bracket 1120, and the upper and lower ends of the connecting plates 1131 have hinge holes 1131a for installing the bucket and the cylinder.

[0023] Among them, the gaps between adjacent bracket connectors 1130 can all be used as inspection openings.

[0024] Compared with the existing cylinder structure, the structure of the cylinder 1100 not only reduces the weight of the cylinder but also increases the internal space while ensuring the strength of the cylinder. In order to further increase the internal space, the connecting plate 1131 is designed to be composed of an upper section 1131a inclined radially outward from top to bottom and a lower section 1131b inclined radially inward from top to bottom, see Figure 2 .

[0025] The hydraulic station 1400 is arranged in the cylinder 1100. Figure 4 As shown, it includes an oil tank 1410 , a hydraulic pump 1420 , a motor 1430 and a controller 1440 .

[0026] The oil tank 1410 has a circular cross section and is embedded in the inner hole of the lower bracket 1120. The upper peripheral surface of the oil tank 1410 forms a horizontal connecting edge 1411, and the connecting edge 1411 is detachably connected to the upper surface of the lower bracket 1120 by bolts.

[0027] In order to facilitate the installation of the oil tank 1410, the circumferential surface of the oil tank 1410 has a plurality of circumferentially distributed positioning blocks 1412, and the inner hole wall of the lower bracket 1120 has a positioning groove 1121 adapted to the positioning block 1412, see Figure 2 .

[0028] like Figure 4 As shown, the upper surface of the oil tank 1410 has a lifting ring 1413.

[0029] The hydraulic pump 1420 is used to pump oil from the oil tank 1410 to the six oil cylinders 1300, the motor 1430 is used to drive the hydraulic pump 1420, and the controller 1440 is used to control the motor 1430. A return oil filter 1450 can be set on the return oil pipeline of the hydraulic pump 1420. The oil tank 1410, the hydraulic pump 1420, the motor 1430, the controller 1440 and the return oil filter 1450 are all fixed on the upper surface of the oil tank 1410, so that the entire hydraulic station 1400 becomes an independent module, which can be lifted out as a whole from the lifting outlet of the upper bracket 1110 for on-site maintenance.

[0030] The hydraulic pump 1420 and the motor 1430 are transversely fixed on the upper surface of the oil tank 1410, which lowers the center of gravity of the grab bucket. Transverse means that the input shaft 1421 of the hydraulic pump 1420 and the output shaft 1431 of the motor 1430 are both in the horizontal direction.

[0031] In order to prevent the connection structure between the hydraulic pump 1420 and the motor 1430 from taking up too much space, the two can be placed horizontally, such as Figure 4 and Figure 5 As shown, the input end face of the hydraulic pump 1420 is attached to the output end face of the motor 1430 and fixed by bolts, and the input shaft 1421 of the hydraulic pump 1420 and the output shaft 1431 of the motor 1430 are connected inside the hydraulic pump 1420 or the motor 1430.

[0032] In this embodiment, if Figure 5 As shown, the output shaft 1431 of the motor 1430 is located as a whole inside the motor 1430, that is, the connecting end of the output shaft 1431 does not exceed the output end face of the motor 1430, and the connecting end forms an axial connecting hole 1431a. The input shaft 1421 of the hydraulic pump 1420 horizontally passes through the output end face of the motor 1430 and extends into the connecting hole 1431a to be connected thereto.

[0033] From the above, it can be seen that an embodiment of the present application provides an installation structure of a hydraulic station in a grab bucket cylinder, wherein the hydraulic pump and motor of the hydraulic station are horizontally fixed on the upper surface of the oil tank, thereby lowering the center of gravity of the entire grab bucket and improving the stability of the grab bucket when grabbing slope materials.

[0034] Compared with the existing cylinder structure, the structure of the cylinder not only reduces the weight of the cylinder but also increases the internal space while ensuring the strength of the cylinder, so that the components of the hydraulic station can be arranged on the upper surface of the oil tank, and the gaps between adjacent bracket connectors can be used as inspection ports, through which the components of the hydraulic station can be inspected or removed, which provides convenience for the maintenance of the hydraulic station.

[0035] At the same time, the entire hydraulic station can be used as an independent module and lifted out from the lifting outlet of the upper bracket as a whole to realize on-site maintenance without the need for the oil cylinder of the maintenance station as in the prior art, which improves the maintenance efficiency and facilitates the cleaning of the oil tank.

[0036] Obviously, those skilled in the art can make various changes and modifications to the present application without departing from the scope of the present application. Thus, if these modifications and variations of the present application fall within the scope of the claims of the present application and their equivalents, the present application is also intended to include these modifications and variations.

Claims

1. An installation structure of a hydraulic station in a grab bucket cylinder, the hydraulic station comprising an oil tank, a hydraulic pump for pumping oil from the oil tank to a grab bucket cylinder, a motor for driving the hydraulic pump, and a controller for controlling the motor, the oil tank being fixed to the lower end of the cylinder, the hydraulic pump, the motor and the controller being located in the cylinder and fixed to the oil tank, the output shaft of the motor being connected to the input shaft of the hydraulic pump, the controller being control-connected to the motor, characterized in that: The hydraulic pump, motor and controller are all fixed on the upper surface of the oil tank. The hydraulic pump and motor are arranged horizontally. The input end face of the hydraulic pump is in contact with the output end face of the motor. The input shaft of the hydraulic pump is connected to the output shaft of the motor in the hydraulic pump or the motor.

2. The installation structure of a hydraulic station in a grab bucket barrel according to claim 1, characterized in that: The output shaft of the motor is entirely located inside the motor, and an axial connecting hole is formed at its connecting end, and the input shaft of the hydraulic pump extends into the connecting hole and is connected thereto.

3. The installation structure of a hydraulic station in a grab bucket barrel according to claim 1 is characterized in that: An oil return filter is provided on the oil return pipeline of the hydraulic pump, and the oil return filter is fixed on the upper surface of the oil tank.

4. The installation structure of a hydraulic station in a grab bucket barrel according to claim 1, characterized in that: The cylinder body includes an upper bracket, a lower bracket arranged below the upper bracket, and a plurality of bracket connectors corresponding to the grab bucket and the oil cylinder one by one. A lifting outlet is formed on the upper bracket. The plurality of bracket connectors are evenly arranged around the upper bracket and the lower bracket. The upper and lower parts of the bracket connectors are respectively connected to the upper bracket and the lower bracket. The oil tank is detachably fixed inside the lower bracket.

5. The installation structure of a hydraulic station in a grab bucket barrel according to claim 4, characterized in that: The upper bracket and the lower bracket are both in annular shape, and the upper part and the lower part of the bracket connecting piece are respectively connected to the outer peripheral surfaces of the upper bracket and the lower bracket.

6. The installation structure of a hydraulic station in a grab bucket barrel according to claim 5, characterized in that: The bracket connector includes two connecting plates spaced apart from each other, with connecting ribs between the two connecting plates, the upper and lower ends of the connecting plates are respectively connected to the outer circumferential surfaces of the upper bracket and the lower bracket, and the upper and lower ends of the connecting plates both have hinge holes.

7. The installation structure of a hydraulic station in a grab bucket barrel according to claim 5, characterized in that: The oil tank has a circular cross section and is embedded in the inner hole of the lower bracket. The upper peripheral surface of the oil tank forms a horizontal connecting edge, and the connecting edge is detachably connected to the upper surface of the lower bracket by bolts.

8. The installation structure of a hydraulic station in a grab bucket according to claim 7, characterized in that: The peripheral surface of the oil tank is provided with a positioning block, and the inner hole wall of the lower bracket is provided with a positioning groove adapted to the positioning block.

9. The installation structure of a hydraulic station in a grab bucket barrel according to claim 4, characterized in that: The upper bracket is provided with a sling hole.

10. The installation structure of a hydraulic station in a grab bucket barrel according to claim 6, characterized in that: The connecting plate is composed of an upper section inclined radially outward from top to bottom and a lower section inclined radially inward from top to bottom.

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