Super-tonnage handle transporter

Abstract

The invention belongs to the field of transporters, and relates to a super-tonnage handle transporter. Auxiliary power can be provided at the starting moment of the motor of the lifting mechanism, and the torque when the motor of the lifting mechanism is started is reduced. According to the technical scheme, supporting legs, a main beam and a lifting mechanism are included. A plurality of supporting legs are installed on the lower portion of the main beam. And the lifting mechanism is arranged on the main beam. The lifting mechanism comprises a lifting trolley, a lifting motor, an auxiliary power piece and a roller. The lifting trolley is movably arranged on the main beam and moves in a reciprocating mode in the extending direction of the main beam. And the lifting motor is fixed on the lifting trolley. One end of the auxiliary power piece is fixedly connected with an output shaft of the lifting motor. The roller is arranged on the lifting trolley and rotates around the center line of the roller, and the auxiliary power piece is fixedly connected with a center shaft of the roller.

Description

Technical Field

[0001] The invention belongs to the field of transporters and relates to an ultra-large tonnage beam-lifting transporter. Background Art

[0002] The lifting mechanism of the lifting beam transporter is electrically driven, which has the advantages of stable power and convenient control. Generally, large or super-large lifting beam transporters can use multiple winches to lift or lower objects. For example, a 900-ton lifting beam transporter can use two to four motors to lift objects, and the maximum lifting mass of each motor reaches 200~450 tons. Therefore, even if there is a reducer between the output shaft and the roller of each motor, the operating power of the motor is very huge.

[0003] When the motor starts to lift an object, the torque of the motor is extremely large. At this time, the current passing through the motor coil is larger than the current during operation. Generally, the current when the motor starts is 2 to 3 times its rated current. Therefore, the motor of the lifting mechanism of the lifting beam transporter is easy to burn out at the moment of starting, and the consequences and equipment losses are quite serious. Summary of the invention

[0004] In order to overcome the defects in the above-mentioned related technologies, the present invention proposes an ultra-large tonnage beam lifting transporter, which can provide auxiliary power at the moment when the motor of the lifting mechanism is started, thereby reducing the torque of the motor of the lifting mechanism when it is started.

[0005] To achieve the above technical objectives, the present invention provides an ultra-large tonnage beam lifting transporter. The ultra-large tonnage beam lifting transporter comprises: legs, a main beam and a lifting mechanism. A plurality of legs are installed at the lower part of the main beam. The lifting mechanism is arranged on the main beam.

[0006] The lifting mechanism includes: a lifting trolley, a lifting motor, an auxiliary power member and a roller. The lifting trolley is movably arranged on the main beam, and the lifting trolley reciprocates along the extension direction of the main beam. The lifting motor is fixed on the lifting trolley. One end of the auxiliary power member is fixedly connected to the output shaft of the lifting motor. The roller is arranged on the lifting trolley, and the roller rotates around its own center line, and the auxiliary power member is fixedly connected to the center axis of the roller.

[0007] The auxiliary power part includes: a hydraulic motor, a driving pump, an oil storage tank, a counterweight, a flow regulating valve and an oil return bypass. The hydraulic motor includes a dual-shaft output hydraulic motor, one output end of the dual-shaft output hydraulic motor is one end of the auxiliary power part, and the other output end of the dual-shaft output hydraulic motor is the other end of the auxiliary power part. A driving roller is arranged on the output shaft of the driving pump, and an oil port of the driving pump is connected to the hydraulic motor. The oil storage tank is connected to the driving pump, and the hydraulic motor is also connected to the oil storage tank. The counterweight is movably arranged on the outrigger, and the counterweight has a tendency to run up and down on the outrigger, and the counterweight is connected to the driving roller by a cable. A flow regulating valve is also arranged between the output end of the driving pump and the hydraulic motor. The oil return bypass is arranged between one output end and the other output end of the hydraulic motor, and a first electric valve is arranged on the oil return bypass.

[0008] Preferably, the driving pump comprises: a pump housing, a piston, a second electric valve and a third electric valve. The pump housing is a cylindrical housing with closed ends. A first oil port is provided at one end of the pump housing, and the first oil port is communicated with an oil port of the hydraulic motor. A second oil port is provided at the other end of the pump housing, and the second oil port is communicated with the oil storage tank. A second oil port is provided at the other end of the pump housing, and the second oil port is communicated with the oil storage tank. A piston is provided between the first oil port and the second oil port of the pump housing. The second electric valve is provided on the pipeline between the first oil port and an oil port of the hydraulic motor. The third electric valve is provided on the pipeline between the second oil port and an oil port of the oil storage tank.

[0009] Preferably, the super-large tonnage beam-lifting transporter further comprises a main controller, and the main controller is electrically connected to the lifting motor, the second electric valve and the second electric valve.

[0010] Preferably, the driving pump further comprises an oil reservoir, and the oil reservoir is on a pipeline between the second electric valve and the first oil port, or the oil reservoir is on a pipeline between the third electric valve and the second oil port.

[0011] Preferably, the super-large tonnage beam lifting and transporting machine further comprises an oil replenisher, which is a hydraulic oil storage box, is connected to the hydraulic motor, and a fourth electric valve and a one-way valve are arranged on the oil outlet pipeline of the oil replenisher, and the fourth electric valve is electrically connected to the main controller.

[0012] Preferably, a hydraulic oil filter is also provided at one oil port end or oil outlet end of the hydraulic motor.

[0013] The beneficial effects of the present invention are: The present invention provides an auxiliary power component. When the ultra-large tonnage beam lifting transporter is in operation, when the lifting mechanism is lifted with an empty hook, the lifting motor of the lifting mechanism can drive the hydraulic motor to operate. At this time, the hydraulic motor can input hydraulic oil into the driving pump, drive the piston to operate, and lift the counterweight.

[0014] When the lifting mechanism lowers the empty hook, the second electric valve and the third electric valve can be closed, and the first electric valve can be opened to ensure that the counterweight remains in place and does not affect the normal operation of the lifting motor.

[0015] When the lifting mechanism lifts an object, the first electric valve is closed, the second electric valve and the third electric valve are opened, and the flow regulating valve is controlled at the same time to control the output torque of the driving pump. Appropriate torque can be provided when the lifting motor starts to reduce the output torque of the lifting motor, thereby reducing the current when the lifting motor starts, thereby protecting the lifting motor. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or related technologies, the drawings required for use in the embodiments or related technical descriptions are briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0017] Figure 1 It is a structural diagram of the present invention; Figure 2 It is the internal structure diagram of the present invention; Figure 3 A structural diagram of a hydraulic system of the present invention; Figure 4 It is a structural diagram of the driving pump of the present invention; Figure 5 This is another structural diagram of a hydraulic system of the present invention.

[0018] In the figure: 1. outrigger; 2. main beam; 31. lifting trolley; 33. roller; 341. hydraulic motor; 342. drive pump; 343. oil storage tank; 344. counterweight; 345. flow regulating valve; 346. oil return bypass; 347. first electric valve; 348. second electric valve; 349. third electric valve; 3410. oil replenisher; 3411. fourth electric valve; 3421. pump housing; 3422. piston. DETAILED DESCRIPTION

[0019] In order to make the above-mentioned purposes, features and advantages of the present invention more obvious and easy to understand, the technical scheme in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work belong to the scope of protection of the present invention.

[0020] In the description of the present invention, it should be understood that the terms "center", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship are based on the orientation or position relationship shown in the drawings, and are only for the convenience of describing the present invention 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 invention.

[0021] The terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, unless otherwise specified, "plurality" means two or more. Example

[0022] like Figures 1 to 4 As shown, this embodiment provides an ultra-large tonnage beam lifting transporter. The ultra-large tonnage beam lifting transporter comprises: a support leg 1, a main beam 2 and a lifting mechanism. A plurality of support legs 1 are installed at the lower part of the main beam 2. The lifting mechanism is arranged on the main beam 2.

[0023] The lifting mechanism includes: a lifting trolley 31, a lifting motor, an auxiliary power part and a roller 33. The lifting trolley 31 is movably arranged on the main beam 2, and the lifting trolley 31 reciprocates along the extension direction of the main beam 2. The lifting motor is fixed on the lifting trolley 31. One end of the auxiliary power part is fixedly connected to the output shaft of the lifting motor. The roller 33 is arranged on the lifting trolley 31, and the roller 33 rotates around its own center line, and the auxiliary power part is fixedly connected to the center axis of the roller 33.

[0024] The auxiliary power part includes: a hydraulic motor 341, a driving pump 342, an oil storage tank 343, a counterweight 344, a flow regulating valve 345 and an oil return bypass 346. The hydraulic motor 341 includes a dual-shaft output hydraulic motor 341, one output end of the dual-shaft output hydraulic motor 341 is one end of the auxiliary power part, and the other output end of the dual-shaft output hydraulic motor 341 is the other end of the auxiliary power part. A driving roller 33 is arranged on the output shaft of the driving pump 342, and an oil port of the driving pump 342 is connected to the hydraulic motor 341. The oil storage tank 343 is connected to the driving pump 342, and the hydraulic motor 341 is also connected to the oil storage tank 343. The counterweight 344 is movably arranged on the leg 1, and the counterweight 344 has a tendency to move up and down on the leg 1. The counterweight 344 is connected to the driving roller 33 through a cable. A flow regulating valve 345 is further provided between the output end of the driving pump 342 and the hydraulic motor 341. The oil return bypass 346 is provided between one output end and the other output end of the hydraulic motor 341, and a first electric valve 347 is provided on the oil return bypass 346.

[0025] The main beam 2 can be a horizontally arranged box beam, and a support leg 1 is fixed at each end of the main beam 2. A lifting trolley 31 is arranged on the main beam 2, and the lifting trolley 31 is movably arranged on the main beam 2, and can reciprocate in the horizontal direction along the extension direction of the main beam 2. A lifting motor is fixed on the lifting trolley 31 and a roller 33 is arranged. Of course, a reducer is arranged between the lifting motor and the roller 33.

[0026] A track is also provided on the leg 1, and a counterweight 344 is slidably connected to the track, and the counterweight 344 can verify the reciprocating operation of the track. The weight of the counterweight 344 can be between 10 and 50 tons.

[0027] A hydraulic motor 341 is also arranged between the lifting motor and the reducer. The hydraulic motor 341 can adopt a dual-output shaft hydraulic motor 341. One output end of the dual-output shaft hydraulic motor 341 is coaxially fixedly connected to the output shaft of the lifting motor, and the other output end of the dual-output shaft hydraulic motor 341 is coaxially fixedly connected to the input shaft of the reducer.

[0028] One oil port of the hydraulic motor 341 is connected to one oil port of the driving pump 342, another oil port of the driving pump 342 is connected to the oil storage tank 343, and another oil port of the hydraulic motor 341 is connected to the oil storage tank 343. A flow regulating valve 345 is provided on the pipeline between one oil port of the hydraulic motor 341 and one oil port of the driving pump 342, and the flow rate of the hydraulic oil entering the hydraulic motor 341 can be controlled by controlling the flow regulating valve 345, so that the output torque of the hydraulic motor 341 can be controlled.

[0029] An oil return bypass 346 is also arranged between one oil port and another oil port of the hydraulic motor 341, and a first electric valve 347 is arranged on the oil return bypass 346. When the first electric valve 347 is closed, the hydraulic motor 341 can drive the hydraulic oil to run between the driving pump 342 and the oil storage tank 343. When the first electric valve 347 is opened, the hydraulic motor 341 can drive the hydraulic oil to run through the oil return bypass 346. At this time, the energy consumption of the lifting motor is extremely low and can be ignored.

[0030] The driving pump 342 is provided with a driving roller 33, and the counterweight 344 is wound around the driving roller 33 through a cable. When the hydraulic motor 341 is running, the driving pump 342 can be reversed to run. At this time, the driving pump 342 lifts the counterweight 344 to store potential energy. When the lifting motor is started, the counterweight 344 falls to make the driving pump 342 run and deliver hydraulic oil to the hydraulic motor 341, so that the hydraulic motor 341 outputs torque, reduces the output torque of the lifting motor, and further reduces the starting current of the lifting motor. Example

[0031] like Figure 5 As shown, on the basis of Example 1, the driving pump 342 described in this embodiment includes: a pump housing 3421, a piston 3422, a second electric valve 348 and a third electric valve 349. The pump housing 3421 is a cylindrical housing with two ends closed. One end of the pump housing 3421 is provided with a first oil port, which is communicated with an oil port of the hydraulic motor 341, and the other end of the pump housing 3421 is provided with a second oil port, which is communicated with the oil storage tank 343. The other end of the pump housing 3421 is provided with a second oil port, which is communicated with the oil storage tank 343. A piston 3422 is provided between the first oil port and the second oil port of the pump housing 3421. The second electric valve 348 is provided on the pipeline between the first oil port and an oil port of the hydraulic motor 341. The third electric valve 349 is provided on the pipeline between the second oil port and an oil port of the oil storage tank 343.

[0032] The pump housing 3421 can be a cylindrical housing fixed on the lifting trolley 31. Both ends of the pump housing 3421 are closed, and an oil port is provided at each end: a first oil port and a second oil port. The first oil port is connected to the hydraulic motor 341, and the second oil port is connected to the oil storage tank 343. The hydraulic motor 341 is also connected to the oil storage tank 343, thus forming a closed loop.

[0033] Among them, the piston 3422 is arranged in the pump housing 3421, and a support rod is fixed on one side of the piston 3422. The support rod passes through one end of the pump housing 3421 and extends to the outside of the pump housing 3421, and the support rod is sealed with the pump housing 3421. A driving roller 33 is arranged at one end of the support rod, and one end of the cable is fixedly connected to the lifting trolley 31. After passing around the driving roller 33, the other end of the cable is connected to the counterweight 344. It can be understood that the cable is connected to the counterweight 344 after passing around the driving roller 33, and a pulley is also arranged at the connection position of the main beam 2 and the leg 1, and the cable can be connected to the counterweight 344 through the pulley.

[0034] In addition, the end of the support rod can be connected to the lifting trolley 31 through rollers and slide rails to avoid serious deformation of the support rod.

[0035] During operation, when the lifting motor drives the hydraulic motor 341 to rotate in the reverse direction, the hydraulic motor 341 pumps hydraulic oil into the driving pump 342, the piston 3422 moves, and pushes the support rod to move away from the pump housing 3421, lifting the counterweight 344 upward, and then closing the second electric valve 348 and the third electric valve 349, so that the counterweight 344 can be stabilized at the current position. When the lifting motor starts, the second electric valve 348 and the third electric valve 349 are opened, the counterweight 344 falls, and the driving pump 342 drives the hydraulic oil into the hydraulic motor 341, the hydraulic motor 341 rotates forward, and provides torque for the reducer, reducing the torque when the lifting motor starts, thereby reducing the starting current of the lifting motor.

[0036] The super-large tonnage beam lifting transporter also includes a main controller, which is electrically connected to the lifting motor, the second electric valve 348 and the second electric valve.

[0037] Preferably, the super-large tonnage beam lifting transporter also includes an oil replenisher 3410, which is a hydraulic oil storage box. The oil replenisher 3410 is connected to the hydraulic motor 341, and a fourth electric valve 3411 and a one-way valve are arranged on the oil outlet pipeline of the oil replenisher 3410. The fourth electric valve 3411 is electrically connected to the main controller.

[0038] A hydraulic oil filter is also provided at an oil port or an oil outlet of the hydraulic motor 341 .

[0039] In the description of this specification, specific features, structures, materials or characteristics may be combined in an appropriate manner in any one or more embodiments or examples.

[0040] The above are only specific embodiments of the present invention, but the protection scope of the present invention is not limited thereto. Any changes or substitutions that can be easily thought of by a person skilled in the art within the technical scope disclosed by the present invention should be included in the protection scope of the present invention. Therefore, the protection scope of the present invention should be based on the protection scope of the claims.

Claims

1. An ultra-large tonnage lifting beam transporter, characterized in that: include: Outriggers; A main beam, wherein a plurality of legs are installed at the lower part of the main beam; A lifting mechanism, wherein the lifting mechanism is arranged on the main beam; Wherein, the lifting mechanism comprises: A lifting trolley, which is movably arranged on the main beam and reciprocates along the extending direction of the main beam; A lifting motor, wherein the lifting motor is fixed on the lifting trolley; An auxiliary power piece, one end of which is fixedly connected to the output shaft of the lifting motor; A roller, wherein the roller is arranged on the lifting trolley and the roller rotates around its own center line, and the auxiliary power member is fixedly connected to the center axis of the roller; The auxiliary power part comprises: A hydraulic motor, wherein the hydraulic motor comprises a dual-shaft output hydraulic motor, wherein one output end of the dual-shaft output hydraulic motor is one end of the auxiliary power member, and the other output end of the dual-shaft output hydraulic motor is the other end of the auxiliary power member; A driving pump, wherein a driving roller is arranged on an output shaft of the driving pump, and an oil port of the driving pump is connected to the hydraulic motor; An oil storage tank, the oil storage tank is in communication with the driving pump, and the hydraulic motor is also in communication with the oil storage tank; A counterweight, the counterweight being movably arranged on the supporting leg, the counterweight having a tendency to move up and down on the supporting leg, and the counterweight being connected to the driving roller via a cable; A flow regulating valve is further provided between the output end of the driving pump and the hydraulic motor; The oil return bypass is arranged between one output end and the other output end of the hydraulic motor, and a first electric valve is arranged on the oil return bypass.

2. The super-large tonnage beam handling machine according to claim 1, characterized in that: The driving pump comprises: A pump housing, the pump housing being a cylindrical housing with both ends closed, a first oil port being provided at one end of the pump housing, the first oil port being communicated with an oil port of the hydraulic motor, and a second oil port being provided at the other end of the pump housing, the second oil port being communicated with the oil storage tank; A piston is provided between the first oil port and the second oil port of the pump housing, a support rod is provided on one side of the piston, the support rod extends to the outside of the pump housing, and a driving roller is provided at the outer end of the support rod; a second electric valve, the second electric valve being arranged on a pipeline between the first oil port and an oil port of the hydraulic motor; A third electric valve is arranged on a pipeline between the second oil port and an oil port of the oil storage tank.

3. The super-large tonnage beam handling machine according to claim 2, characterized in that: The super-large tonnage beam lifting transporter also includes a main controller, which is electrically connected to the lifting motor, the second electric valve and the second electric valve.

4. The super-large tonnage beam handling machine according to claim 3, characterized in that: The super-large tonnage beam lifting transporter also includes an oil replenisher, which is a hydraulic oil storage box. The oil replenisher is connected to the hydraulic motor. A fourth electric valve and a one-way valve are arranged on the oil outlet pipeline of the oil replenisher. The fourth electric valve is electrically connected to the main controller.

5. The super-large tonnage beam handling machine according to claim 4, characterized in that: A hydraulic oil filter element is also provided at one oil port end or oil outlet end of the hydraulic motor.

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