Transfer trolley with lifting device
Technical Field
The invention relates to a centrally installed switchgear and transfer equipment thereof, in particular to a transfer trolley with a lifting device.
Background
The armoured movable indoor AC metal closed switch equipment (hereinafter referred to as a centrally installed switchgear) is special power distribution equipment for a 10kV power system, and generally consists of a fixed cabinet body and a movable part. Because the removable parts can be replaced in time when the movable parts fail, the power failure time can be greatly shortened, and the centrally installed switchgear becomes the most widely used substation switching equipment in China at present. And when the centrally installed switchgear is installed and overhauled, the movable parts in the switchgear are required to be shifted out of or conveyed into the switchgear by using a transfer trolley for overhauling or replacing. The movable part transfer trolley is therefore an indispensable auxiliary device for the centrally installed switchgear. When installing the removable component, the removable component needs to be lifted from the truck and placed on the transfer car, and then the transfer car is pushed to the front of the centrally installed cabinet for installation. In this process, special lifting equipment is required to lift the removable component off the truck and place it on the transfer trolley, and the power substation is limited in space and difficult to use due to the large size of the lifting equipment. Generally, the lifting and placing are carried out manually, the efficiency is very low, and the potential safety hazard is high.
Disclosure of Invention
The technical problem to be solved by the invention is to provide the transfer trolley with the lifting device, so that the removable component can be lifted off the truck without special lifting equipment, and the removable component can be rapidly and accurately placed on the corresponding position of the transfer trolley, thereby reducing the labor intensity of workers, and being safe and reliable.
In order to solve the technical problems, the technical scheme provided by the invention is as follows:
the utility model provides a take hoist device's transfer car (buggy), includes frame, running gear and hoist device, is equipped with removable part mounting bracket on the frame, and running gear sets up the bottom at the frame, and hoist device sets up the top at the frame, and hoist device includes entablature and hoist assembly, and entablature level sets up the top at the frame, and the entablature extends along the fore-and-aft direction of frame, and hoist assembly slides and sets up on the entablature. By adopting the structure, the lifting device is directly arranged on the transfer trolley, so that the step of position adjustment between the lifting device and the transfer trolley when the removable component is placed can be omitted, and the proper placement position on the transfer trolley can be found out more quickly.
Further, the hoisting assembly comprises a hoisting hoist, travelling wheels and a hanging chain, the travelling wheels are arranged on two sides of the hoisting hoist, the travelling wheels can roll along the upper cross beam, a sliding structure is arranged between the upper cross beam and the top end of the frame, a rotatable winding shaft is arranged below the hoisting hoist, one end of the hanging chain is wound on the winding shaft, and the other end of the hanging chain is provided with a lifting hook. During hoisting, the upper cross beam is moved forwards to the hoisting working position and then fixed by the fixing screw, and then the hoisting hoist is slid to the front end of the upper cross beam, so that the hoisting assembly can realize the hoisting of the movable part at a far position to the greatest extent. The forefront end of the upper beam is provided with a limiting device for preventing the lifting device from sliding out of the upper beam. And in the non-hoisting state, the upper cross beam is moved back to the transferring working position, and at the moment, the forefront end of the upper cross beam is ensured not to protrude out of the forefront end of the lower connecting device. Avoiding collision with the centrally installed switchgear or other objects.
Further, the two sides of the upper beam are respectively provided with a first driving sprocket and a second driving sprocket, the first driving sprocket is in driving connection with the winding shaft, and the lifting device is controlled to move forwards or backwards on the upper beam by pulling the chain clockwise or anticlockwise. The second driving chain wheel is in driving connection with the hoisting hoist. The lifting frame on the lifting device is controlled to ascend or descend by pulling the chain clockwise or anticlockwise. Further, the transfer vehicle with the lifting device further comprises a lifting assembly, the lifting assembly comprises a hydraulic oil cylinder and a hydraulic oil pump, the removable component mounting frame is slidably arranged on the frame, the hydraulic oil cylinder is mounted at the bottom of the frame, the power output end of the hydraulic oil cylinder is connected with the removable component mounting frame, and a hydraulic loop is arranged between the hydraulic oil pump and the hydraulic oil cylinder. The lift assembly is configured to allow the removable component mounting frame to move up and down, thereby allowing for vertical movement of the removable component.
Further, the transfer trolley with the lifting device further comprises a connecting device, the connecting device comprises a mounting beam and a positioning rod, the mounting beam is horizontally arranged on the frame, supporting plates are arranged at two ends of the mounting beam, the positioning rod is rotatably arranged on the supporting plates and extends along the front and rear directions of the frame, two ends of the positioning rod are an operation end and a connecting end respectively, and a blocking shaft is further arranged at the connecting end. The general centrally installed switchgear is provided with a positioning hole, one side of the positioning hole is additionally provided with a hook plate, the connecting end of the positioning rod can be inserted into the positioning hole, and the positioning and connection of the transfer trolley and the centrally installed switchgear can be realized by arranging the baffle shaft into the opening of the hook plate when the operating end is rotated.
Further, the locating rod is also provided with a first limiting shaft, the support plate is provided with a second limiting shaft, the first limiting shaft and the second limiting shaft are staggered in space, and the first limiting shaft is abutted against or separated from the second limiting shaft when the locating rod rotates. The setting of first spacing axle and second spacing axle guarantees that the locating lever can only rotate certain angle, keeps off the oral area that the axle can just put into the hook plate when locking, and the position of locating lever also can obtain the restriction and can not swing at will when the unblock.
Further, the transfer trolley with the lifting device further comprises a locking device, the locking device comprises a locking plate, a locking seat and a support, the support is arranged on the frame, the locking seat is fixedly arranged on the support, a sliding groove is formed in the locking seat, the locking plate is arranged in the sliding groove and can slide along the sliding groove, a locking groove is formed in the positioning rod, the locking groove faces the sliding groove when the positioning rod rotates to a certain angle, and at the moment, one end of the locking plate can be inserted into the locking groove. When the positioning rod is connected with the middle cabinet, the locking groove is opposite to the fixed locking seat sliding groove, the locking plate is inserted into the locking groove in a sliding mode, the rotation freedom degree of the positioning rod is limited, and the position of the positioning rod is fixed.
Further, the locking device further comprises a locking pin shaft, a pin shaft through hole is formed in the locking seat, the locking pin shaft is inserted into the pin shaft through hole and can slide along the pin shaft through hole, a locking plate through groove is formed in the locking pin shaft, and the locking plate is inserted into the locking plate through groove and can slide along the locking plate through groove.
Further, a shifting plate chute is arranged on the locking plate, the shifting plate chute inclines relative to the sliding direction of the locking plate, a shifting pin guide groove is arranged on the locking seat, a shifting pin is arranged on the locking pin shaft, two ends of the shifting pin are arranged in the shifting pin guide groove and can slide along the shifting pin guide groove, meanwhile, the shifting pin passes through the shifting plate chute and can slide along the shifting plate chute, and an elastic element is further arranged between the locking pin shaft and the locking seat. By adopting the structure, only the locking pin shaft is required to be moved, the poking pin is also displaced, the position of the poking pin relative to the poking plate chute is also changed, the poking pin forces the locking plate to move up and down along the chute, and the locking plate slides into or is separated from the locking groove, so that the locking or unlocking of the positioning rod can be realized. The elastic element can enable the locking pin shaft to realize automatic return.
Further, the locating rod is further provided with a locking sleeve, the locking sleeve is sleeved on the locating rod and fixedly connected with the locating rod, two locking grooves are formed in the locking sleeve, and the two locking grooves are distributed at 90-degree intervals along the cylindrical surface of the locking sleeve. The locking sleeve is arranged, the locking groove is arranged on the locking sleeve, the manufacturability of the positioning rod can be improved, the locking groove is prevented from being milled on the positioning rod with longer length, the production cost and the manufacturing difficulty are reduced, the diameter of the positioning rod can be reduced, and the positioning rod can be fixed at the locking position and the unlocking position due to the structure of the double locking grooves.
In summary, the transfer trolley with the lifting device can lift the removable component from the truck without special lifting equipment, and can rapidly and accurately place the removable component on the corresponding position of the transfer trolley, thereby reducing the labor intensity of workers, and being safe and reliable.
Drawings
Fig. 1 is a schematic view of a transfer vehicle with a lifting device in a transfer working state according to the embodiment;
fig. 2 is a schematic diagram of the transfer vehicle with a lifting device in the lifting working state according to the embodiment; the method comprises the steps of carrying out a first treatment on the surface of the
Fig. 3 is a schematic structural view of a first driving sprocket and a second driving sprocket of the transfer vehicle with a lifting device in the embodiment;
fig. 4 is a schematic structural view of a connecting device and a locking device in the transfer vehicle with a hoisting device in the embodiment;
fig. 5 is a schematic structural view of a connecting device in the transfer vehicle with a hoisting device according to the embodiment;
fig. 6 is a schematic structural view of a locking device in the transfer vehicle with a hoisting device according to the embodiment;
fig. 7 is a schematic structural view of a locking pin, a locking plate, a locking seat and an elastic element of the locking device in the transfer vehicle with the lifting device in the embodiment;
fig. 8 is a schematic front view and a top view of a case where a locking pin is installed in the transfer vehicle with a lifting device according to the embodiment;
fig. 9 is a schematic structural view of a locking plate in the transfer vehicle with a lifting device according to the embodiment;
fig. 10 is a schematic view of a front view and a cross-sectional structure of a locking sleeve in the transfer vehicle with a lifting device according to the embodiment;
the movable part comprises a movable part (0), a frame (1), a supporting frame (11), a walking assembly (2), a lifting device (3), an upper beam (31), a walking wheel (32), a walking wheel rotating shaft (33), a lifting frame (34), a lifting hoist (35), a first transmission chain wheel (36), a second transmission chain wheel (37), a lifting assembly (4), a movable part mounting frame (41), a hydraulic oil cylinder (42), a hydraulic oil pump (43), a connecting device (5), a positioning hole (51), a hook plate (52), a mounting beam (53), a positioning rod (54), a blocking shaft (55), a first limiting shaft (56), a second limiting shaft (57), a locking device (6), a locking plate (62), a locking seat (63), a sliding groove (631), a bracket (64), a locking pin (65), a locking plate through groove (651), a poking pin (652), a locking sleeve (66), a locking groove (661), an elastic element (67) and a balancing weight (7).
Detailed Description
The present invention will be described in further detail with reference to the drawings and examples, in order to make the objects, technical solutions and advantages of the present invention more apparent. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the invention.
The utility model provides a take hoist device's transfer car (buggy) as shown in fig. 1 and 2, including frame 1, walking subassembly 2 and hoist device 3, be equipped with removable part mounting bracket 41 on the frame 1, walking subassembly 2 sets up in the bottom of frame 1, hoist device 3 sets up the top at frame 1, hoist device 3 includes entablature 31 and hoist subassembly, entablature 31 level sets up the top at frame 1, entablature 31 extends along the fore-and-aft direction of frame 1, hoist subassembly slip sets up on entablature 31.
In this embodiment, a supporting frame 11 is further disposed between the upper beam 31 and the frame 1, and a sliding structure is disposed between the upper beam 31 and the supporting frame 11. As a simple embodiment, four screws may be provided on the support frame 11, and two sliding grooves may be formed on the upper beam 31 at the same time, so that the upper beam 31 and the support frame 11 may be slidably connected. In the lifting position of fig. 1 and in the transferring position of fig. 2, 4 screws are used to fix the upper cross beam 31 to the support frame 11. A limiting device is arranged at the forefront end of the upper cross beam 31.
Specifically, the hoisting assembly comprises a hoisting hoist 32, travelling wheels 33 and a hanging chain 34, wherein the travelling wheels 33 are arranged on two sides of the hoisting hoist 32, the travelling wheels 33 can roll along the upper cross beam 31, a rotatable winding shaft 35 is arranged below the hoisting hoist 32, one end of the hanging chain 34 is wound on the winding shaft 35, and a lifting hook is arranged at the other end of the hanging chain 34. When the hoisting working position of fig. 1 is reached, the hoisting hoist 32 slides to the front end of the upper beam 31, and the hoisting assembly can realize the hoisting of the movable part 0 at a far position to the greatest extent. In the transfer operating position of fig. 2, the forefront end of the upper cross member 31 should not exceed the forefront end of the connecting device 5 to avoid collision with the centrally installed switchgear or other objects.
Meanwhile, the two sides of the upper beam 31 are respectively provided with a first driving sprocket 36 and a second driving sprocket 37, as shown in fig. 3, the first driving sprocket 36 is in driving connection with the winding shaft 35, and the second driving sprocket 37 is in driving connection with the hoisting hoist 32. With this structure, the first drive sprocket 36 and the second drive sprocket 37 are respectively provided with power elements such as a hand wheel, so that the positions of the hook and the hoist 32 can be controlled in a moving manner. In addition, because the movable part has larger mass, the gravity center is possibly caused to be positioned in front of the front wheel of the walking assembly 2 when the movable part is lifted in the working position in fig. 1, in order to prevent the transfer trolley from tilting forward when being lifted, the bottom of the transfer trolley can be provided with a balancing weight 7, and the balancing weight 7 is made of materials with large density such as lead, as shown in fig. 1 and 2.
By adopting the structure, the lifting device 3 is directly arranged on the transfer trolley, so that the step of adjusting the position between the lifting device 3 and the transfer trolley when the removable component 0 is placed can be omitted, and the proper placement position on the transfer trolley can be found more quickly. In addition, the transfer vehicle with the lifting device further comprises a lifting assembly 4, the lifting assembly 4 comprises a hydraulic oil cylinder 42 and a hydraulic oil pump 43, the removable part mounting frame 41 is slidably arranged on the frame 11, the hydraulic oil cylinder 42 is arranged at the bottom of the frame 1, the power output end of the hydraulic oil cylinder 42 is connected with the removable part mounting frame 41, and a hydraulic circuit is arranged between the hydraulic oil pump 42 and the hydraulic oil pump 43. The lift assembly 4 is configured to allow the removable component mounting frame 41 to move up and down, thereby allowing for vertical movement of the removable component 0.
As shown in fig. 4 and 5, the transfer vehicle with the lifting device further comprises a connecting device 5, the connecting device 5 comprises a mounting beam 53 and a positioning rod 54, the mounting beam 53 is horizontally arranged on the vehicle frame 1, support plates are arranged at two ends of the mounting beam 53, the positioning rod 54 is rotatably arranged on the support plates and extends along the front and rear directions of the vehicle frame 1, two ends of the positioning rod 54 are an operation end and a connecting end respectively, and a blocking shaft 55 is further arranged at the connecting end. A positioning hole 51 is formed in a general centrally installed switchgear, a hook plate 52 is additionally arranged on one side of the positioning hole 51, a connecting end of a positioning rod 54 can be inserted into the positioning hole 51, and a blocking shaft 55 swings into the opening of the hook plate 52 when an operating end is rotated, so that the positioning and connection of a transfer vehicle and the centrally installed switchgear can be realized.
Preferably, the positioning rod 54 is further provided with a first limiting shaft 56, the support plate is provided with a second limiting shaft 57, the first limiting shaft 56 and the second limiting shaft 57 are spatially staggered, and the first limiting shaft 56 abuts against or is separated from the second limiting shaft 57 when the positioning rod 54 rotates. The arrangement of the first limiting shaft 56 and the second limiting shaft 57 ensures that the positioning rod 54 can only rotate a certain angle, the blocking shaft 55 can swing into the mouth of the hook plate 52 properly during locking, and the position of the positioning rod 54 can be limited without random swing during unlocking.
Meanwhile, as shown in fig. 6 and 7, the transfer vehicle with lifting device further comprises a locked device 6, the locked device 6 comprises a locking plate 62, a locking seat 63 and a bracket 64, the bracket 64 is arranged on the frame 1, the locking seat 63 is fixedly arranged on the bracket 64, a sliding groove 631 is arranged on the locking seat 63, the locking plate 62 is arranged in the sliding groove 631 and can slide along the sliding groove 631, a locking groove 661 is arranged on the positioning rod 54, the locking groove 661 is opposite to the sliding groove 631 when the positioning rod 54 rotates to a certain angle, and at the moment, one end of the locking plate 62 can be inserted into the locking groove 661. When the positioning rod 54 is connected with the centrally installed switchgear, the locking groove 661 is opposite to the fixed locking seat 63 sliding groove 631, the locking plate 62 is slidingly inserted into the locking groove 661, the rotation freedom degree of the positioning rod 54 is limited, and the position of the positioning rod 54 is fixed.
Specifically, the locking device 6 further includes a locking pin 65, the locking seat 63 is provided with a pin through hole, the locking pin 65 is inserted in the pin through hole and can slide along the pin through hole, the locking pin 65 is provided with a locking plate through groove 651, and the locking plate 62 is inserted in the locking plate through groove 651 and can slide along the locking plate through groove 651, as shown in fig. 8.
As shown in fig. 7, 8 and 9, the locking plate 62 is provided with a shifting plate chute 621, the shifting plate chute 621 is inclined relative to the sliding direction of the locking plate 62, the locking seat 63 is provided with a shifting pin guide groove 632, the locking pin 65 is provided with a shifting pin 652, two ends of the shifting pin 652 are arranged in the shifting pin guide groove 632 and can slide along the shifting pin guide groove 632, meanwhile, the shifting pin 652 passes through the shifting plate chute 621 and can slide along the shifting plate chute 621, and an elastic element 67 is further arranged between the locking pin 65 and the locking seat 63, as shown in fig. 6. With such a structure, only the locking pin 65 is required to be moved, the poking pin 652 is also displaced, the position of the poking pin 652 relative to the poking plate chute 621 is also changed, the poking pin 652 forces the locking plate 62 to move up and down along the chute 631, and the locking plate 62 slides into or out of the locking groove 661, so that the locking or unlocking of the positioning rod 54 can be realized. The elastic element 67 is arranged to enable the locking pin 65 to return automatically.
The positioning rod 54 is also provided with a locking sleeve 66, the locking sleeve 66 is sleeved on the positioning rod 54 and fixedly connected with the positioning rod 54, two locking grooves 661 are arranged on the locking sleeve 66, and the two locking grooves 661 are distributed along the cylindrical surface of the locking sleeve 66 at intervals of 90 degrees, as shown in fig. 10. The locking sleeve 66 is arranged, the locking groove 661 is arranged on the locking sleeve 66, the manufacturability of the positioning rod 54 can be improved, the locking groove 661 is prevented from being milled on the positioning rod 54 with a longer length, the production cost and the manufacturing difficulty are reduced, the diameter of the positioning rod 54 can be reduced, and the structure of the double locking grooves 661 can ensure that the positioning rod 54 can be fixed at both the locking position and the unlocking position. In summary, the transfer trolley with the lifting device can lift the removable component from the truck without a special lifting device 3, and can rapidly and accurately place the removable component on the corresponding position of the transfer trolley, thereby reducing the labor intensity of workers, and being safe and reliable.
In summary, the foregoing description is only of the preferred embodiments of the invention, and is not intended to limit the invention to the particular embodiments disclosed, but on the contrary, the intention is to cover all modifications, equivalents, and alternatives falling within the spirit and scope of the invention.