CN210366755U - Double-beam trolley type internal translation electric hoist - Google Patents
Double-beam trolley type internal translation electric hoist Download PDFInfo
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- CN210366755U CN210366755U CN201921187903.XU CN201921187903U CN210366755U CN 210366755 U CN210366755 U CN 210366755U CN 201921187903 U CN201921187903 U CN 201921187903U CN 210366755 U CN210366755 U CN 210366755U
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Abstract
The utility model relates to a double-beam trolley type internal translation electric hoist, which comprises an internal translation electric hoist drum device, wherein one side of the internal translation electric hoist drum device is provided with a walking trolley fixedly connected with the internal translation electric hoist drum device, the middle part of a trolley girder of the walking trolley is provided with a fixed pulley, two ends of the trolley girder are respectively connected with a T-shaped end beam vertical to the trolley girder, the bottoms of the two T-shaped end beams are respectively connected with a combined wheel box, the bottom of the combined wheel box is provided with wheels, and the combined wheel box at one end is connected with a driving and braking mechanism; the structure of the inner translation electric hoist drum device is as follows: the winding drum comprises a winding drum, a brake motor is arranged in the winding drum, an output shaft of the brake motor is connected with an inner translational speed reducer which drives the winding drum to rotate through an intermediate shaft, the output shaft of the brake motor is a speed reducer output shaft, a safety brake is sleeved on the speed reducer output shaft, and the end part of the speed reducer output shaft is connected with a lifting height limiter. The utility model provides high workshop utilization ratio and operation security.
Description
Technical Field
The utility model belongs to the technical field of electric block device technique and specifically relates to a translation electric block in two roof beam dolly formulas.
Background
Traditional two roof beam trolley formula electric block adopts traditional CD type or MD type electric block, lays on the trolley frame through the support of reel shell, and the trolley frame adopts the quadrangle structure that two crossbeams, both ends roof beam welding formed, and girder and end beam are welding box girder, and this kind of structure has some problems: 1. the cross beams and the end beams of the trolley are all welded box beams, then four box beams are welded into a quadrilateral structure, the manufacturing process is complex, the cost is high, the size and the weight of the trolley are large, the wheel pressure of the whole crane is increased, and the manufacturing cost and the process of the whole crane are increased; the effective arrival space of lifting hook is low, and the workshop utilization ratio is low: because the trolley frame is large in size, the electric hoist is arranged in the middle, and the distances from the front to the back and from the left to the right in the horizontal direction of the lifting hook are limited, the lifting hook cannot reach part of workshop positions, so that the workshop space utilization rate is reduced; the traditional steel wire rope electric block transmission system transmits a conical motor shaft to a drum shaft and then to a reducer shaft, so that the efficiency is low, the lifting speed is limited, the shaft system is long, a low-speed shaft safety brake is not provided, and the shaft breakage risk is high.
SUMMERY OF THE UTILITY MODEL
The applicant aims at the defects in the prior art and provides the double-beam trolley type inner translation electric hoist with a reasonable structure, so that the trolley volume is reduced, and the operation space and the operation safety of the lifting hook are improved.
The utility model discloses the technical scheme who adopts as follows:
a double-beam trolley type internal translation electric hoist comprises an internal translation electric hoist drum device, wherein one side of the internal translation electric hoist drum device is provided with a walking trolley fixedly connected with the internal translation electric hoist drum device, the middle part of a trolley main beam of the walking trolley is provided with a fixed pulley, two ends of the trolley main beam are respectively connected with a T-shaped end beam vertical to the trolley main beam, the bottoms of the two T-shaped end beams are respectively connected with a combined wheel box, the bottom of the combined wheel box is provided with wheels, and the combined wheel box at one end is connected with a driving and braking mechanism; the structure of the inner translation electric hoist drum device is as follows: the winding drum comprises a winding drum, a brake motor is arranged in the winding drum, an output shaft of the brake motor is connected with an inner translational speed reducer which drives the winding drum to rotate through an intermediate shaft, the output shaft of the brake motor is a speed reducer output shaft, a safety brake is sleeved on the speed reducer output shaft, and the end part of the speed reducer output shaft is connected with a lifting height limiter.
As a further improvement of the above technical solution:
the hoisting height limiter adopts a screw type hoisting height limiter, a worm gear and a point location device of the hoisting height limiter are located in a protective shell, the worm gear and the point location device are installed on the shell of the safety brake through an installation base, and after the rotating shaft of the hoisting height limiter stretches out of the protective shell, the worm gear and the point location device stretch into a concave hole formed in the end part of an output shaft of the internal translational speed reducer and are connected through bolts, a blind hole is formed in one side of the concave hole, and a connecting hole matched with the blind hole is formed in the.
The structure of the combined wheel box is as follows: the device comprises a wheel box outer plate connected with the bottom surface of a T-shaped end beam, wherein two sides of the wheel box outer plate are respectively connected with a side plate, a supporting plate in a hollow cylindrical structure extends from the inner side of each side plate, and the two supporting plates are simultaneously in interference fit with a bearing for mounting a wheel shaft; the side surface of the outer plate of the wheel box is provided with a buffer.
The driving and braking mechanism has the structure that: the device comprises an operating motor, wherein an output shaft of the operating motor is connected with a speed reducing device, and an output end of the operating motor is connected with an internal spline in the middle of a wheel; the motor shaft of the running motor is connected with an electromagnetic brake through a flat key shaft sleeve.
The outer part of the winding drum is provided with a gourd shell, two ends of the gourd shell are sealed by end plates, the inner surface of each end plate is fixed with a fire breaking limiter, and the lower part of the inner surface of the shell is provided with a descending depth limiter.
The trolley girder of the walking trolley is provided with a supporting seat and is welded or screwed with the two ends of the hoist shell of the inner-plane electric hoist drum device through the supporting seat.
The inner translation electric hoist drum device is connected with a hook pulley block provided with a hook through a steel wire rope, and the structure of the inner translation electric hoist drum device is as follows: the lifting hook is installed between the two movable pulleys through a cross beam; the steel wire rope is wound out of the inner translation electric hoist drum device, and is wound back to the inner translation electric hoist drum device after sequentially passing through one movable pulley, the fixed pulley and the other movable pulley.
The fixed pulley is installed on a trolley girder through a pin shaft with a force transducer, an anti-falling device is further installed on the trolley girder beside the fixed pulley, and an electric cabinet is installed on a T-shaped end beam at one end.
The winding drum is provided with a rope guide and a rope pressing device matched with the rope guide.
The hoist shell of the internal translation electric hoist drum device is welded or screwed with a trolley main beam of the walking trolley.
The utility model has the advantages as follows:
the utility model discloses compact structure, reasonable, convenient operation has following advantage:
1. the utility model has high effective reaching space of the hook and high workshop utilization rate; the T-shaped end beams on the two sides of the main beam of the frame are only provided with one vertical plate, so that the length of the T-shaped end beams is short, and the front and back, left and right effective running spaces of the lifting hook are large; the walking trolley adopts a plate and tube structure, is I-shaped, and has simple structure, convenient installation and low manufacturing cost.
2. The inner-flat electric hoist winding drum device of the utility model has the advantages that the motor and the speed reducer are both arranged inside the winding drum, so that the length of the transmission system of the motor, the winding drum and the speed reducer is greatly reduced, and the risk of shaft breakage is greatly reduced; the special disc type motor is adopted, so that the power density is high, the efficiency is high, the transmission ratio of the inner translational speed reducer is large, and two-stage speed reduction is realized; flanges and inner gear rings at two ends of the winding drum are far away from the edge of the winding drum, so that the support of the winding drum wall is more reasonable, and the bearing capacity of the winding drum is improved; there are two stages of braking, the first stage being arranged on the high speed shaft, i.e. the disc motor shaft, for speed reduction braking and support braking; the second stage is arranged on the low-speed shaft, and the winding drum is directly braked by the reducer shaft, so that the braking is safe; the lifting speed can be improved by increasing the diameter of the winding drum, increasing the rotating speed of the motor and the like; the winding drum and the motor are both arranged inside the winding drum, so that the winding drum can be isolated from the environment, and is particularly suitable for explosion-proof occasions, high-temperature occasions, low-temperature occasions, corrosive occasions, wet occasions and occasions with severe environment in rainy and snowy fields.
3. The modularized structure is convenient to install and transport. Except that the trolley main beam and the end beam are welded into an I-shaped structure, the whole electric hoist has independent modular structures such as an inner-plane electric hoist winding drum device, a combined wheel box, an electric cabinet, a fixed pulley and the like, and is convenient to transport and install.
Drawings
Fig. 1 is a schematic structural diagram of the present invention.
Fig. 2 is the structure schematic diagram of the lifting height limiter of the utility model.
Fig. 3 is a schematic structural diagram of the output shaft of the reduction gear of the present invention.
Fig. 4 is a front view of the combination wheel box of the present invention.
Fig. 5 is a side view of the combination wheel box of the present invention.
Fig. 6 is a schematic structural view of the walking trolley of the present invention.
Fig. 7 is a schematic structural diagram of the internal translation electric hoist drum device of the present invention.
Fig. 8 is a top view of the present invention.
Wherein: 1. a hook; 2. a hook pulley block; 3. a wire rope; 4. a wheel; 5. a combination wheel box; 501. a side plate; 502. an internal spline; 506. a bearing; 508. a wheel box outer plate; 509. a support plate; 6. a buffer; 7. a T-shaped end beam; 8. an internal translation electric hoist drum device; 9. a lifting height limiter; 901. connecting holes; 902. a rotating shaft; 903. installing a base; 904. a protective housing; 11. an electric cabinet; 14. blind holes; 15. concave holes; 16. an anti-drop device; 17. a pin shaft; 18. a fixed pulley; 19. a trolley main beam; 21. a rope guide; 22. a rope pressing device; 23. a cutoff limiter; 24. a descent depth limiter; 25. a speed reduction mechanism; 26. operating the motor; 27. an electromagnetic brake; 28. a supporting seat; 801. a disc motor; 802. a disc brake; 803. a motor flange; 804. braking the motor; 805. a countersunk bolt; 806. a housing flange; 807. a motor bearing; 808. a spool flange; 809. an output shaft of the motor; 810. an elastic coupling; 811. an intermediate shaft; 812. a gourd shell; 813. a reel; 815. an inner gear ring; 816. a safety brake; 818. a reduction gear output shaft; 819. an inner translational reducer; 820. a first stage shunt reduction gear; 821. an external tooth flange plate; 822. a connecting bolt; 823. the reduction gear input shaft.
Detailed Description
The following describes embodiments of the present invention with reference to the drawings.
As shown in fig. 1-3 and 6, the double-beam trolley type internal translation electric hoist of the present embodiment includes an internal translation electric hoist drum device 8, a traveling trolley fixedly connected to the internal translation electric hoist drum device 8 is disposed on one side of the internal translation electric hoist drum device 8, a fixed pulley 18 is mounted in the middle of a trolley main beam 19 of the traveling trolley, T-shaped end beams 7 perpendicular to the trolley main beam 19 are respectively connected to two ends of the trolley main beam 19, a combination wheel box 5 is respectively connected to the bottoms of the two T-shaped end beams 7, wheels 4 are mounted at the bottoms of the combination wheel boxes 5, and a driving and braking mechanism is connected to the combination wheel box 5 at one end; the structure of the inner translation electric hoist drum device 8 is as follows: the lifting height limiter comprises a winding drum 813, a brake motor 804 is installed in the winding drum 813, an output shaft of the winding drum is connected with an inner translational reducer 819 which drives the winding drum 813 to rotate through an intermediate shaft 811, the output shaft of the winding drum is a speed reducer output shaft 818, a safety brake 816 is sleeved on the output shaft, and the end of the speed reducer output shaft 818 is connected with a lifting height limiter 9.
As shown in fig. 2 and 3, the hoisting height limiter 9 is a screw type hoisting height limiter, a worm gear and a point location device of the hoisting height limiter are located in a protective casing 904 and are mounted on the casing of the safety brake 816 through a mounting base 903, after a rotating shaft 902 of the hoisting height limiter 9 extends out of the protective casing 904, the rotating shaft extends into a concave hole 15 formed in the end part of an output shaft of an inner translational reducer 819 and is connected with the concave hole through a bolt, a blind hole 14 is formed in one side of the concave hole 15, and a connecting hole 901 matched with the blind hole 14 is formed in the rotating shaft 902.
As shown in fig. 4 and 5, the combination wheel box 5 has the following structure: the device comprises a wheel box outer plate 508 connected with the bottom surface of a T-shaped end beam 7, wherein two sides of the wheel box outer plate are respectively connected with a side plate 501, a supporting plate 509 in a hollow cylindrical structure extends from the inner side of the side plate 501, and the two supporting plates 509 are simultaneously in interference fit with a bearing 506 for mounting a wheel shaft; the side of the wheel box outer plate 508 is provided with a buffer 6.
As shown in fig. 1, the driving and braking mechanism has the structure: comprises an operating motor 26, the output shaft of which is connected with a speed reducing mechanism 25, and the output end of which is connected with an internal spline 502 in the middle of the wheel 4; the motor shaft of the running motor 26 is connected with an electromagnetic brake 27 through a flat key shaft sleeve.
The outer part of the winding drum 813 is provided with a gourd shell body 812, two ends of the gourd shell body are sealed by end plates, the fire breaking limiter 23 is fixed on the inner surface of the end plates, and the lower part of the inner surface of the shell is provided with a descending depth limiter 24.
The fixed pulley 18 is installed on a trolley girder 19 through a pin shaft 17 with a force transducer, the trolley girder 19 positioned beside the fixed pulley 18 is also provided with an anti-falling device 16, and the T-shaped end beam 7 positioned at one end is provided with an electric cabinet 11.
The inner translation electric hoist drum device 8 is connected with a hook pulley block 2 provided with a hook 1 through a steel wire rope 3, and the structure is as follows: the device comprises two movable pulleys arranged at intervals, wherein a lifting hook 1 is arranged between the two movable pulleys through a cross beam; the steel wire rope 3 is wound out of the inner translation electric hoist drum device 8, sequentially wound through one movable pulley, the fixed pulley 18 and the other movable pulley and then wound back to the inner translation electric hoist drum device 8.
The winding drum 813 is provided with a rope guide 21 and a rope pressing device 22 matched with the rope guide 21.
As shown in fig. 8, the trolley main beam 19 of the traveling trolley is provided with a support seat 28, and is welded or screwed with both ends of the hoist housing 812 of the inner electric hoist drum device 8 through the support seat 28.
The design principle of the utility model is as follows:
the lifting hook 1 is of a forging structure and is fixed on a lifting hook beam through a lifting hook tail thread and a pin shaft; the hook pulley block 2 consists of a left pulley, a right pulley, a hook beam and a pulley housing, and is used for connecting the hook 1 and winding a steel wire rope 3; the two ends of the steel wire rope 3 are fixed at the end part of the winding drum 813 through a rope head pressing plate, pass through the rope guider 21, bypass the hook pulley block 2 and the fixed pulley 18, and convert the rotation of the winding drum 813 into the lifting motion of the hook 1, so as to lift and lower a heavy object;
the wheels 4, double-rim wheels, are covered by the combined wheel box 5, the lower part of the wheels leaks out of the combined wheel box 5, flanges are arranged on two sides of the wheels, and the wheels 4 in the middle of the two flanges are in contact with the track;
the wheel box outer plate 508 is quadrilateral, the side plates 501 are bilaterally symmetrical, and form a cube with the wheel box outer plate 508;
the inner spline 502 is provided with a flat key on the outer ring and a spline on the inner ring, and the spline is used for connecting an output shaft of the speed reducing mechanism 25 and driving the wheel 4 to run, so that the whole small frame is driven to run;
the buffer 6 is of a polyurethane cylindrical structure, is arranged in front of the wheel box outer plate 508 and is used for buffering impact force when the stroke limit fails;
the trolley main beam 19 is a tubular structure with a rectangular cross section, and two ends of the trolley main beam are welded on the side surface of the T-shaped end beam 7 and are vertical to the T-shaped end beam 7; the T-shaped end beam 7 is composed of a vertical plate and a bottom plate, the vertical plate is vertical to the bottom plate and is in a welded structure, the bottom plate is connected with an upper cover plate of the wheel box outer plate 508 through bolts, and the vertical plate is vertical to the trolley main beam 19 and is in welded connection to play a role in supporting load;
the hoist height limiter 9 rotates with the reduction gear output shaft 818;
the rotating shaft 902 is a screw extending part, the outer end of the rotating shaft is connected with an output shaft 818 of the speed reducer, and the inner end of the rotating shaft is connected with a turbine of the lifting height limiter 9 to drive the turbine to rotate;
a protective housing 904, a plastic housing, protects the point location and turbine mechanism inside;
the electric cabinet 11 is used for installing a sticker box of an electric component and is fixed on one side of the T-shaped end beam 7;
the anti-falling device 16 adopts a bolt penetrating through a trolley girder 19, is arranged outside the outer edge of the fixed pulley 18 and is used for preventing the steel wire rope from falling off a pulley groove of the fixed pulley 18;
the pin shaft 17 is a pin shaft with a force measuring sensor, plays a role of a pin shaft and can play a role of a lifting capacity limiter;
the fixed pulley 18 and the forged pulley are positioned in the rectangular section of the trolley main beam 19 and play roles in bearing weight and changing the direction of the steel wire rope 3;
the rope guider 21 is a circular ring structure formed by hinging two semicircles, moves left and right along the winding drum along with the winding motion of the steel wire rope, and plays a role in guiding the steel wire rope to be orderly arranged in the winding drum groove;
the rope pressing device 22 is connected with the rope guide, has a certain pressure and presses the steel wire rope, and the steel wire rope can be completely pressed into the rope groove;
the fire breaking limiter 23 is fixed on an end plate of the hoist shell through bolts, when the lifting height reaches a rated height, the rope guider 21 collides with a contact of the fire breaking limiter 23, the contact is disconnected, the lifting motor is powered off, and the lifting action is stopped;
the descending depth limiter 24 is used for limiting fire, when the winding drum 813 rotates to drive the lifting hook 1 to descend to move to a limit position, the rope guider 21 runs to the middle of the winding drum 813 and touches the descending depth limiter 24, descending action is stopped, excessive descending operation is prevented, the steel wire rope 3 is reversely wound, and the steel wire rope 3 and the rope head pressing plate are broken;
the electromagnetic brake 27 is an electromagnetic disc brake, the electromagnetic disc brake is connected with a motor shaft through a flat key shaft sleeve, the outer edge of the electromagnetic brake is connected to a rear end cover of the running motor 26 through a bolt, when the running motor 26 is powered on, a coil of the electromagnetic brake 27 passes through, the coil generates electromagnetic suction, an armature is pulled to be separated from a friction disc, the running motor 26 does not bear braking resistance when running motor 26 is powered off, the coil of the electromagnetic brake 27 loses power, electromagnetic force disappears, the armature presses the brake disc under the action of the elastic force of a braking spring, and the electromagnetic brake 27 brakes the shaft of the running motor, so that the wheel 4 is braked.
As shown in fig. 7, the internal translation electric hoist drum device 8 has the following specific structure:
the brake device comprises a hoist shell 812, a winding drum 813 coaxial with the hoist shell is arranged in the hoist shell 812, one end of the hoist shell 812 positioned in the winding drum 813 is connected with a motor flange 803 through a shell flange 806, a disc brake motor 804 is installed on one side surface of the motor flange 803 positioned in the hoist shell 812, a motor output shaft 809 of the disc brake motor is connected with a winding drum flange 808 welded on the inner wall of the winding drum 813 through a motor bearing 807, and the output end of the motor output shaft 809 is connected with an inner translational reducer 819 through an intermediate shaft 811; the internal translational reducer 819 has the following structure: the device comprises a speed reducing device input shaft 823 connected with an intermediate shaft 811, wherein a primary shunting speed reducing device 820 and a main speed reducing device are sequentially connected to the speed reducing device input shaft 823, the primary shunting speed reducing device 820 is connected with an external tooth flange plate 821 sleeved on the speed reducing device input shaft 823, an inner gear ring 815 in matched transmission with the external tooth flange plate 821 is sleeved on the outer ring of the external tooth flange plate 821, and the outer ring of the inner gear ring 815 is fixedly connected to the inner wall of a winding drum; the speed reducer output shaft 818 is connected to the main speed reducer and is connected with the safety brake 816, and the safety brake 816 is connected with the other end of the hoist shell 812 through the shell flange 806; the disc brake motor 804 structure is: the brake comprises a disc brake 802 fixedly arranged on a motor flange 803 and connected with a disc motor 801 into a whole; the external tooth flange plate 821 has the structure: comprises a circular body, wherein the middle part of the circular body is provided with a bearing hole for mounting an input shaft 823 of a speed reducing device; the inner gear ring 815 is in a circular ring structure, meshing teeth are arranged on the inner wall of the inner gear ring 815, and the outer ring of the inner gear ring 815 is welded on the inner wall of the winding drum 813; the external tooth flange plate 821 is fixedly connected with the first-stage shunt reduction gear 820 through a connecting bolt 822; the structure of the winding drum 813 is as follows: comprises a cylindrical tubular body, the outer surface of which is provided with rope grooves which evenly extend along the axial direction along the circumferential direction; the shell flanges 806 at the two ends inside the hoist shell 812 are respectively connected with the motor flange 803 and the safety brake 816 through the countersunk bolts 805; two ends of the intermediate shaft 811 are connected to the motor output shaft 809 and the reduction gear input shaft 823 through an elastic coupling 810, respectively.
The utility model discloses an implementation:
when the lifting motion reaches the limit, the rope guide 21 touches the fire breaking limiter 23, the lifting motion stops, and the lifting operation can still be performed in a descending mode. The defined lift can be set by means of a lift stop 9.
When descending, the internal flat electric hoist drum device 8 rotates reversely, the steel wire rope 3 descends the lifting hook 1 through the lifting hook pulley block 2 and the fixed pulley 18, and the rope guide 21 also moves towards the inner side of the drum, when descending to the limit position, the rope guide 21 runs to the middle part of the drum, touches the descending depth limiter 24, and the descending action stops, and places excessive descending operation, so that the steel wire rope reversely winds, and breaks the steel wire rope and the rope head pressing plate.
When the system is suddenly powered off or the middle shaft of the winding drum is broken, the safety brake 816 of the winding drum device 8 of the inner-level electric hoist is braked to play the role of the last-level safety protection.
When the electric hoist runs along the track and the running motor 26 is electrified, the coil of the electromagnetic brake 27 passes through the coil to generate electromagnetic attraction, the armature is pulled, the armature is separated from the friction disc, the running motor 26 does not bear braking resistance in running, the output shaft of the running motor 26 is transmitted to the speed reducing mechanism 25, the rotating speed is reduced, the torque is increased and then transmitted to the driving wheel internal spline 502, and therefore the wheel 4 is driven to run. When the running motor 26 is powered off, the coil of the electromagnetic brake 27 is powered off, the electromagnetic force disappears, the armature is pressed to the brake disc under the action of the elastic force of the brake spring, and the electromagnetic brake 27 brakes the shaft of the running motor, so that the wheels 4 are braked, and the running of the trolley is stopped.
The above description is for the purpose of explanation and not limitation of the invention, which is defined in the claims, and any modifications may be made within the scope of the invention.
Claims (9)
1. The utility model provides a translation electric block in two roof beam dolly formulas which characterized in that: the electric hoist roller device comprises an inner electric hoist roller device (8), wherein a walking trolley fixedly connected with the inner electric hoist roller device (8) is arranged on one side of the inner electric hoist roller device (8), a fixed pulley (18) is arranged in the middle of a trolley main beam (19) of the walking trolley, two ends of the trolley main beam (19) are respectively connected with a T-shaped end beam (7) vertical to the trolley main beam, the bottoms of the two T-shaped end beams (7) are respectively connected with a combined wheel box (5), wheels (4) are arranged at the bottoms of the combined wheel boxes (5), and a driving and braking mechanism is connected onto the combined wheel box (5) at one end;
the structure of the inner translation electric hoist drum device (8) is as follows: the lifting mechanism comprises a winding drum (813), a brake motor (804) is installed in the winding drum, an output shaft of the winding drum is connected with an inner translational reducer (819) which drives the winding drum (813) to rotate through an intermediate shaft (811), the output shaft of the winding drum is a speed reducer output shaft (818), a safety brake (816) is sleeved on the output shaft of the speed reducer output shaft, and the end part of the speed reducer output shaft (818) is connected with a lifting height limiter (9).
2. The double-beam trolley type internal translation electric hoist as claimed in claim 1, characterized in that: hoisting height stopper (9) adopt screw hoisting height stopper, its turbine mechanism and point location ware are located protecting sheathing (904), it is installed on the shell of safety brake (816) through installation base (903), the axis of rotation (902) of hoisting height stopper (9) stretch out protecting sheathing (904) back, stretch into in shrinkage pool (15) that interior translational reducer (819) output shaft tip was seted up, and through bolted connection, shrinkage pool (15) one side is opened has blind hole (14), open on axis of rotation (902) have with blind hole (14) complex connecting hole (901).
3. The double-beam trolley type internal translation electric hoist as claimed in claim 1, characterized in that: the structure of the combined wheel box (5) is as follows: the device comprises a wheel box outer plate (508) connected with the bottom surface of a T-shaped end beam (7), wherein two sides of the wheel box outer plate are respectively connected with a side plate (501), a supporting plate (509) in a hollow cylindrical structure extends from the inner side of the side plate (501), and the two supporting plates (509) are simultaneously in interference fit with a bearing (506) for mounting a wheel shaft; the side surface of the wheel box outer plate (508) is provided with a buffer (6).
4. The double-beam trolley type internal translation electric hoist as claimed in claim 1, characterized in that: the driving and braking mechanism has the structure that: comprises a running motor (26), an output shaft of the running motor is connected with a speed reducing mechanism (25), and an output end of the running motor is connected with an internal spline (502) in the middle of a wheel (4); the motor shaft of the running motor (26) is connected with an electromagnetic brake (27) through a flat key shaft sleeve.
5. The double-beam trolley type internal translation electric hoist as claimed in claim 1, characterized in that: the outer part of the winding drum (813) is provided with a gourd shell (812), two ends of the gourd shell are sealed by end plates, the inner surface of each end plate is fixed with a fire breaking limiter (23), and the lower part of the inner surface of the shell is provided with a descending depth limiter (24).
6. The double-beam trolley type internal translation electric hoist as claimed in claim 5, characterized in that: interior translation electric block reel device (8) are connected hook block (2) that are equipped with lifting hook (1) through wire rope (3), and its structure is: the lifting hook comprises two movable pulleys arranged at intervals, and the lifting hook (1) is arranged between the two movable pulleys through a cross beam; the steel wire rope (3) is wound out of the inner translation electric hoist drum device (8), sequentially wound through one movable pulley, the fixed pulley (18) and the other movable pulley and then wound back to the inner translation electric hoist drum device (8).
7. The double-beam trolley type internal translation electric hoist as claimed in claim 5, characterized in that: a trolley girder (19) of the walking trolley is provided with a supporting seat (28) and is welded or screwed with the two ends of a hoist shell (812) of the inner translational electric hoist drum device (8) through the supporting seat (28).
8. The double-beam trolley type internal translation electric hoist as claimed in claim 1, characterized in that: the fixed pulley (18) is installed on a trolley girder (19) through a pin shaft (17) with a force measuring sensor, an anti-falling device (16) is further installed on the trolley girder (19) located beside the fixed pulley (18), and an electric cabinet (11) is installed on a T-shaped end beam (7) located at one end.
9. The double-beam trolley type internal translation electric hoist as claimed in claim 1, characterized in that: the winding drum (813) is provided with a rope guide (21) and a rope pressing device (22) matched with the rope guide (21).
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| Application Number | Priority Date | Filing Date | Title |
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| CN201921187903.XU CN210366755U (en) | 2019-07-25 | 2019-07-25 | Double-beam trolley type internal translation electric hoist |
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| CN201921187903.XU CN210366755U (en) | 2019-07-25 | 2019-07-25 | Double-beam trolley type internal translation electric hoist |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106726269A (en) * | 2016-12-29 | 2017-05-31 | 太原科技大学 | Nursing lifting apparatus |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106726269A (en) * | 2016-12-29 | 2017-05-31 | 太原科技大学 | Nursing lifting apparatus |
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