CN212712418U - Bridge/gantry crane - Google Patents
Bridge/gantry crane Download PDFInfo
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- CN212712418U CN212712418U CN202021323619.3U CN202021323619U CN212712418U CN 212712418 U CN212712418 U CN 212712418U CN 202021323619 U CN202021323619 U CN 202021323619U CN 212712418 U CN212712418 U CN 212712418U
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- trolley
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- 238000004804 winding Methods 0.000 claims description 8
- 230000005540 biological transmission Effects 0.000 abstract description 21
- 230000007613 environmental effect Effects 0.000 abstract description 5
- 239000003638 chemical reducing agent Substances 0.000 description 7
- 239000002184 metal Substances 0.000 description 4
- 229910000831 Steel Inorganic materials 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 230000005484 gravity Effects 0.000 description 2
- 239000010720 hydraulic oil Substances 0.000 description 2
- 239000003921 oil Substances 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 230000008094 contradictory effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
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Abstract
The utility model discloses a bridge/portal crane, which comprises a bridge/portal frame, wherein a movable trolley is arranged on the bridge/portal frame, a cart running mechanism is arranged on the bridge/portal frame, and a trolley running mechanism and a hoisting mechanism are arranged on the movable trolley; the cart running mechanism is provided with a first power part, the trolley running mechanism is provided with a second power part, and the hoisting mechanism is provided with a third power part; the first power part is provided with a first power unit and a second power unit, and the first power unit and the second power unit are respectively provided with a cart power source; the second power part is a third power unit which is provided with a trolley power source; the third power part is a fourth power unit which is provided with a lifting power source; the cart power source, the trolley power source and the lifting power source are respectively hydraulic motors. The utility model discloses the advantage lies in simple structure, and the transmission is direct efficient, and functioning speed is steady, has simplified original complicated structure, has reduced the risk probability of incident in the use, simultaneously energy-efficient environmental protection.
Description
Technical Field
The utility model relates to a hoisting machinery especially relates to a bridge/gantry crane.
Background
A bridge/portal crane is mainly used for cargo loading and unloading operation of construction sites such as workshops, goods yards, material yards and the like. The bridge type metal structure is a bridge frame, and a movable trolley and a movable end beam are arranged on a bearing main beam and directly walk on a section steel track on the inner side of a workshop column; the door type metal structure is a door frame, a movable trolley is installed at the upper end of a bearing main beam, two support legs are installed below the bearing main beam, and the door type metal structure directly walks on a ground track.
The lifting operation of the existing bridge/portal crane turns: the hoisting mechanism is driven to the speed reducer by the motor connecting coupler and the transmission shaft, and then is driven to the winding drum by the speed reducer, the brake is arranged on the rear side or the front side of the motor, the transmission structure is complex, the transmission efficiency is low, the brake is influenced by gravity, the brake is worn too fast, the brake spring is too fast, the manual adjustment of the brake force is not easy to control, the brake adjustment is too tight, the motor shaft can be twisted off under the influence of gravity, and major accidents are directly caused; the transmission coupler and the transmission shaft are in an external leakage rotating state and cannot be lubricated in real time, the transmission shaft is in an internal tooth and internal spline structure, an overhaul worker cannot visually observe a wear state and cannot find the wear condition in time, and only in an accident or a non-use state, the transmission part is worn to 0 point and needs to be replaced; the operation structure is the same with the transmission structure that rises, and under the hoist belongs to the operation state for a long time in addition, on the metal construction steel wheel orbit, there is not shock-absorbing function, can produce the complete machine vibrations, be in for a long time under the vibration state, the fixed screw of speed reducer (fixed speed reducer 4), motor (fixed motor screw 4), stopper (fixed screw 4) is not hard up easily, can make the transmission part be in the disalignment state, twist off transmission shaft or motor shaft easily during the braking brake, or motor or speed reducer collapse, can cause major lifting by crane the accident at any time.
Disclosure of Invention
An object of the utility model is to provide a solve bridge/gantry crane of above-mentioned problem.
In order to achieve the above purpose, the utility model can adopt the following technical proposal:
the bridge/portal crane comprises a bridge/portal frame, wherein a movable trolley which runs along the bridge/portal frame is arranged on the bridge/portal frame, a cart running mechanism is arranged on the bridge/portal frame, and a trolley running mechanism and a lifting mechanism are arranged on the movable trolley; the cart running mechanism is provided with a first power part, the trolley running mechanism is provided with a second power part, and the hoisting mechanism is provided with a third power part;
the first power part is a first power unit and a second power unit which are respectively arranged on two sides of the bridge/gantry, and the first power unit and the second power unit are respectively provided with at least one cart power source;
the second power part is at least one third power unit arranged on the movable trolley, and the third power unit is provided with at least one trolley power source;
the third power part is at least one fourth power unit arranged on the movable trolley, and the fourth power unit is provided with at least one lifting power source;
the cart power source, the trolley power source and the lifting power source are respectively hydraulic motors.
Specifically, a steering mechanism is further arranged on the bridge/portal frame, and the steering mechanism is provided with a fourth power part.
Specifically, the fourth power part is a first steering unit and a second steering unit which are respectively arranged on two sides of the bridge/gantry, and the first steering unit and the second steering unit are respectively provided with at least one steering power source.
Specifically, the steering power source is a hydraulic motor.
Specifically, the number of the cart power sources is 2-8, the number of the trolley power sources is 2-8, the number of the steering power sources is 2-8, and the number of the lifting power sources is 1-3.
Specifically, the hydraulic motor has a first brake unit and a second brake unit, and the hoisting mechanism has a third brake unit.
Specifically, the hoisting mechanism is provided with a winding drum; the first brake unit is an electronic hydraulic flow valve, the second brake unit is an electronic mechanical hydraulic stop valve, and the third brake unit is arranged on a drum brake in the winding drum.
The utility model has the advantages of simple structure, the transmission is direct efficient, and functioning speed is steady, has simplified the original complicated transmission structure of hoist, greatly reduced the risk probability of incident in the use, energy-efficient environmental protection simultaneously (the environmental protection noise reduces about 60% under the complete machine running state, and the energy-conserving reduction of power consumption is about 80%).
Drawings
Fig. 1 is a schematic structural diagram of embodiment 1 of the present invention.
Fig. 2 is a left side view of fig. 1.
Fig. 3 is a top view of fig. 1.
Fig. 4 is a schematic structural view of embodiment 2 of the present invention.
Fig. 5 is a left side view of fig. 4.
Fig. 6 is a partially sectional enlarged view of a portion a in fig. 4.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention. It should be noted that all the directional indicators (such as upper, lower, left, right, front and rear … …) in the embodiment of the present invention are only used to explain the relative position relationship between the components, the motion situation, etc. in a specific posture (as shown in the drawings), and if the specific posture is changed, the directional indicator is changed accordingly. In the present application, unless expressly stated or limited otherwise, the terms "connected" and "fixed" are to be construed broadly, e.g., "fixed" may be fixedly connected or detachably connected, or integrally formed; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art. In addition, descriptions in the present application as to "first", "second", and the like are for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicit to the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature.
In addition, the meaning of "and/or" appearing throughout is to include three juxtapositions, exemplified by "A and/or B," including either the A or B arrangement, or both A and B satisfied arrangement. In addition, the technical solutions in the embodiments may be combined with each other, but it must be based on the realization of those skilled in the art, and when the technical solutions are contradictory or cannot be realized, the combination of the technical solutions should not be considered to exist, and is not within the protection scope of the present invention.
Example 1: as shown in fig. 1-3, the bridge crane of the present invention includes a bridge frame 10, a movable trolley 20 disposed on the bridge frame 10 and moving along the bridge frame 10, a cart running mechanism disposed on the bridge frame 10, and a trolley running mechanism and a hoisting mechanism disposed on the movable trolley 20; the cart running mechanism is provided with a first power part, the trolley running mechanism is provided with a second power part, and the hoisting mechanism is provided with a third power part;
the first power part is a first power unit 110 and a second power unit 120 which are respectively arranged at two sides of the bridge frame 10, and the first power unit 110 and the second power unit 120 are respectively provided with two cart power sources which are arranged in front and at the back;
the second power part is two third power units arranged at the front and the rear of the movable trolley 20, and the third power units are provided with two trolley power sources 130 arranged at the front and the rear;
the third power part is two fourth power units arranged on the movable trolley 20, wherein one fourth power unit is a main hoisting mechanism 140, the other fourth power unit is an auxiliary hoisting mechanism 150, and hoisting power sources 160 are respectively arranged on the main hoisting mechanism 140 and the auxiliary hoisting mechanism 150;
the cart power source, the trolley power source 130 and the lifting power source 160 are hydraulic motors respectively;
according to different models of bridge cranes and different lifting capacity requirements, 2-8 cart power sources can be configured, 2-8 trolley power sources 130 can be configured, and 1-3 lifting power sources 160 can be configured;
specifically, each hydraulic motor has a first brake unit and a second brake unit, and the main hoisting mechanism 140 and the auxiliary hoisting mechanism 150 have a third brake unit; the main hoisting mechanism 140 and the auxiliary hoisting mechanism 150 each have a drum; the first brake unit is an electronic hydraulic flow valve, the second brake unit is an electronic mechanical hydraulic stop valve, and the third brake unit is a drum brake arranged in the winding drum.
The principle is as follows: the transmission of the hydraulic motor is directly efficient, and the speed stepless speed change is stable: the flow of hydraulic oil can be freely controlled through the electronic hydraulic flow valve to realize stepless speed change, and the supply and discharge of oil are intercepted through the electronic mechanical hydraulic stop valve to realize the braking function; the drum brake in the winding drum carries out secondary brake, secondary safety of the hoisting brake is increased, transmission safety risk accidents are reduced to 0 point, and high-altitude falling accidents caused by transmission failure or screw loosening speed reducer crack during hoisting are permanently avoided.
The bridge crane using the hydraulic motor as a power source simplifies the original complex transmission structure of the crane, greatly reduces the risk probability of safety accidents in use, enables the product to be efficient, energy-saving and environment-friendly, reduces the environmental noise by about 60% under the running state of the whole crane, and reduces the power consumption by about 80%.
Example 2: as shown in fig. 4-6, the portal crane of the present invention comprises a portal frame 30, a movable trolley 20 moving along the portal frame 30 is arranged on the portal frame 30, a cart running mechanism is arranged on the portal frame 30, and a trolley running mechanism and a lifting mechanism are arranged on the movable trolley 20; the cart running mechanism is provided with a first power part, the trolley running mechanism is provided with a second power part, and the hoisting mechanism is provided with a third power part;
the first power part is a first power unit 110 and a second power unit 120 respectively arranged at two sides of the gantry 30, the first power unit 110 and the second power unit 120 are respectively provided with two cart power sources arranged front and back, as shown in fig. 6, the cart power sources are arranged in the moving wheels at the bottom ends of the support legs at two sides of the gantry 30 and drive the moving wheels to move back and forth;
the second power part is two third power units arranged at the front and the rear of the movable trolley 20, and the third power units are provided with two trolley power sources 130 arranged at the front and the rear;
the third power part is a fourth power unit arranged on the movable trolley 20, the fourth power unit is a hoisting mechanism 170, and a hoisting power source 160 is arranged on the hoisting mechanism 170;
the cart power source, the trolley power source 130 and the lifting power source 160 are hydraulic motors respectively;
specifically, a steering mechanism is further provided on the gantry 30, and the steering mechanism has a fourth power unit.
Specifically, the fourth power part is a first steering unit 180 and a second steering unit 190 which are respectively arranged on two sides of the gantry, and the first steering unit 180 and the second steering unit 190 are respectively two steering power sources which are arranged in front and at the back; specifically, the steering power source is a hydraulic motor.
According to different models of gantry cranes and different lifting capacity requirements, 2-8 cart power sources, 2-8 trolley power sources 130, 1-3 lifting power sources 160 and 2-8 steering power sources can be configured;
specifically, each hydraulic motor has a first brake unit and a second brake unit, and the lifting mechanism 170 has a third brake unit; the hoisting mechanism 170 has a drum; the first brake unit is an electronic hydraulic flow valve, the second brake unit is an electronic mechanical hydraulic stop valve, and the third brake unit is a drum brake arranged in the winding drum.
The principle is as follows: the transmission of the hydraulic motor is directly efficient, and the speed stepless speed change is stable: the flow of hydraulic oil can be freely controlled through the electronic hydraulic flow valve to realize stepless speed change, and the supply and discharge of oil are intercepted through the electronic mechanical hydraulic stop valve to realize the braking function; the drum brake in the winding drum carries out secondary brake, secondary safety of the hoisting brake is increased, transmission safety risk accidents are reduced to 0 point, and high-altitude falling accidents caused by transmission failure or screw loosening speed reducer crack during hoisting are permanently avoided.
The gantry crane with the hydraulic motor as a power source simplifies the original complex transmission structure of the crane, greatly reduces the risk probability of safety accidents in use, enables the product to be efficient, energy-saving and environment-friendly, reduces the environmental noise by about 60% under the running state of the whole crane, and reduces the power consumption by about 80%.
Claims (7)
1. A bridge/portal crane comprises a bridge/portal frame, wherein a movable trolley running along the bridge/portal frame is arranged on the bridge/portal frame, a cart running mechanism is arranged on the bridge/portal frame, and a trolley running mechanism and a lifting mechanism are arranged on the movable trolley; the hoisting device is characterized in that the cart running mechanism is provided with a first power part, the trolley running mechanism is provided with a second power part, and the hoisting mechanism is provided with a third power part;
the first power part is a first power unit and a second power unit which are respectively arranged on two sides of the bridge/gantry, and the first power unit and the second power unit are respectively provided with at least one cart power source;
the second power part is at least one third power unit arranged on the movable trolley, and the third power unit is provided with at least one trolley power source;
the third power part is at least one fourth power unit arranged on the movable trolley, and the fourth power unit is provided with at least one lifting power source;
the cart power source, the trolley power source and the lifting power source are respectively hydraulic motors.
2. Bridge/gantry crane according to claim 1, wherein a steering mechanism is further provided on the bridge/gantry, which steering mechanism has a fourth power part.
3. The bridge/gantry crane according to claim 2, wherein the fourth power part is a first steering unit and a second steering unit respectively provided at both sides of the bridge/gantry, the first steering unit and the second steering unit respectively having at least one steering power source.
4. Bridge/gantry crane according to claim 3, wherein the steering power source is a hydraulic motor.
5. The bridge/gantry crane according to any one of claims 1 to 4, wherein the number of the cart power sources is 2 to 8, the number of the trolley power sources is 2 to 8, the number of the steering power sources is 2 to 8, and the number of the lifting power sources is 1 to 3.
6. Bridge/gantry crane according to any one of claims 1-4, wherein the hydraulic motor has a first brake unit and a second brake unit and the hoisting mechanism has a third brake unit.
7. A bridge/gantry crane according to claim 6, wherein the hoisting mechanism has a drum; the first brake unit is an electronic hydraulic flow valve, the second brake unit is an electronic mechanical hydraulic stop valve, and the third brake unit is arranged on a drum brake in the winding drum.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021323619.3U CN212712418U (en) | 2020-07-08 | 2020-07-08 | Bridge/gantry crane |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021323619.3U CN212712418U (en) | 2020-07-08 | 2020-07-08 | Bridge/gantry crane |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212712418U true CN212712418U (en) | 2021-03-16 |
Family
ID=74977684
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021323619.3U Expired - Fee Related CN212712418U (en) | 2020-07-08 | 2020-07-08 | Bridge/gantry crane |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212712418U (en) |
-
2020
- 2020-07-08 CN CN202021323619.3U patent/CN212712418U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20210316 |