CN115893244A - A double roller device - Google Patents

Abstract

The invention provides a double-roller device which comprises a wall frame, a walking device, two parallel winding drums, a rope head fixing device, two winding drum driving motors and a lower limiting device, wherein one end of the walking device is fixedly connected with the wall frame; during the operation, the goods can be lifted, lowered or horizontally moved, and the device has high efficiency and stability.

Description

A double roller device

technical field

The invention relates to the technical field of crane lifting equipment, in particular to a double-roller device.

Background technique

At present, in the actual crane lifting operation process, the crane lifting equipment is used to lift or lower the goods, which is an important mechanism in the crane, and its working performance directly affects the working performance of the whole crane. Traditional cranes, because the overall mass of the crane is too large, not only increases the economic cost, but also wastes space resources, and also limits the lifting range of the crane. The existing crane is generally set as a coil for winding the wire rope drum device, and when lifting a single drum, because the lifting items are relatively high safety requirements such as hydraulic air pumps, if the wire rope is disconnected, it will bring safety hazards. In order to solve this technical problem, such as Chinese Patent Application No. It is CN202011459785.0, and the publication date is 2021.04.27, which discloses a double-drum crane lifting device, including a base, a drive assembly, a steel wire drum and a cable drum, and the base includes a first seat and a second seat. Body, the first seat and the second seat are arranged at intervals and a load cell is arranged between the first seat and the second seat, the second seat is slidingly connected with the guide rail; the drive assembly is connected with the first seat The steel wire reel and the cable reel, the steel wire assembly is connected with the drive assembly, the cable reel is connected with the steel wire reel and is synchronously driven by the drive assembly; wherein, the drive assembly drives the steel wire wound on the steel wire reel and the cable reel The cable wound on the top is connected to the spreader to control the spreader. The steel wire drum and the cable drum are set separately and rotate synchronously, thereby reducing the number of steel wire drums and cable drums and reducing the overall size of the crane. And it can control clamps of different heights to carry out clamping work, thereby expanding the scope of use of the crane. However, this device is still only provided with a reel device of a wire rope for lifting, and the safety is not high. For the existing lifting equipment with two reels, generally two reels are connected in series to form a reel, which is essentially a reel. At the same time, the two reels rotate at the same time, so that a single reel cannot be lifted when there is no need to use two reels for lifting, thereby increasing the cost of use and causing energy waste; at the same time, the device cannot be used at high altitudes movement in the horizontal direction.

Contents of the invention

The purpose of the present invention is to provide a double-drum device, which can raise, lower or move goods during operation, and has high efficiency and stability.

In order to achieve the above object, a double-drum device includes a wall frame, a walking device, two reels arranged side by side, a rope head fixing device, two reel drive motors and a lower limit device, and one end of the running device is connected to the wall frame. Fixedly connected, the traveling device is used to drive the wall frame to move on the rack and guide rail on the crane jib. The traveling device includes a traveling bracket, a pulley device, a traveling drive motor, a drive shaft and a pin device, and the pulley device includes a traveling pulley device and a lateral pulley device, the travel pulley device is arranged on the travel bracket, the side pulley device is arranged on the travel pulley device at an end away from the travel bracket, and the fixed end of the travel drive motor is arranged On one side of the pin device, the output shaft end of the walking drive motor is fixedly connected to one end of the drive shaft, the drive shaft is provided with a gear that travels on the rack, and the other end of the drive shaft is rotatably connected to the bearing. The pin shaft device is fixedly connected with the wall frame, the lower limit device includes a pressure roller, spring device and lower limit travel switch, the lower limit bracket is installed on both sides of the pressure roller, and the spring device is arranged on On both sides of the pressure roller, one end of the spring device is connected to the lower limit bracket, the other end of the spring device is connected to one end of the pressure roller, and the lower limit bracket is respectively connected to the lower limit bracket through the spring device. The two ends of the pressure roller are connected, the lower limit travel switch is set on the lower limit bracket on one side of the pressure roller, and the spring device is movable between the lower limit travel switch and the two ends of the pressure roller, The spring device includes a spring. When the spring is in a natural state, the pressure roller fits the reel, and the lower limit travel switch works. When the spring is compressed, one end of the travel switch is connected with the spring device to trigger the lower limit travel switch not to work. Both sides of the pressure roller are provided with inclined parts inclined upwards and inwards, the wall frame is arranged at both ends of the reel, and the two ends of the reel are respectively connected to the wall frame in rotation, and the reel The drive motor is arranged on the wall frame at one end of the reel, and the output end of the reel drive motor is connected to one end of the reel, a gap is provided between the two reels, and the pressing roller is arranged on the end of the reel. In the gap between the reels, and the two reels are arranged symmetrically with respect to the pressure rollers, and the pressure rollers are respectively connected to the two reels, and the lower limit bracket is fixedly connected to the upper end of the wall frame, so The rope end fixing device is arranged at one end of the reel.

With the above settings, the traveling device is fixedly connected to the wall frame through the pin shaft device, and at the same time, the pulley device is arranged on the guide rail to position the movement of the traveling device, and the drive shaft is driven by the rotation of the travel drive motor, and the gear on the drive shaft is on the gear Move on the rack, so that when the rack and the guide rail are set on the crane jib, the double-roller device can move on the guide rail of the crane jib; it has good stability and is easy to operate, without manual position adjustment , two reels are arranged side by side on the wall frame, so that the two steel wire ropes are wound on the two reels respectively, and then the objects are lifted by the two steel wire ropes, so as to prevent the problem of poor safety caused by the breakage of one steel wire rope. A pressure roller is in contact with two reels, and by setting a reel drive motor on the wall frame at one end of the reel, it can be driven by the reel drive motor to drive the reel to rotate; through the gap between the reels The pressure roller device is set in the middle, which can make the wire rope stable and orderly when it is lowered or lifted, and avoids the phenomenon of twisting the wire rope between the drums; , the steel wire rope is wound on the reel through the rope end fixing device, and then when the two reels reach the lower limit position, the pressure roller contacts the reel so that the spring returns to its natural state and the lower limit travel switch works so that the rope will no longer be released. , the control of the rope unwinding action can be realized only through a lower limit device, the structure is simple, and resources are saved. In addition, because each reel is driven by the corresponding reel drive motor, it can realize the work of a single reel and the operation of two reels. work, the structure is simple, and the cost is saved.

Further, there are more than two walking supports, including a walking support one and a walking support two, the walking support one and the walking support two are respectively arranged on the pulley device, and the walking support one and the walking support two Parallel arrangement; the wall frame is provided with more than two, including wall frame one and wall frame two, the wall frame one and the wall frame two are respectively arranged at the two ends of the reel, the wall frame one and the wall frame The two are arranged in parallel, the reel driving motor is arranged and installed on the second wall frame far away from the end of the rope head fixing device, and the second wall frame is provided with a reduction box mounting plate.

With the above settings, by setting the first walking bracket and the second walking bracket in parallel, the pulley device can be installed on the walking bracket, thereby realizing the horizontal movement of the pulley device on the guide rail; The drive of the motor makes the reel run in rotation; by arranging the gear box mounting plate on the wall frame 2, the gear box can be installed on the gear box mounting plate, and then the rotation of the drum is decelerated.

Further, the pin shaft device includes two connecting risers arranged on the walking support, a connecting plate arranged on the wall frame and a fixing plate located on one side of the connecting riser, and a pin shaft, the connecting riser and the connecting plate A connecting hole corresponding to the pin shaft is provided, the connecting plate is arranged between the connecting vertical plates and the pin shaft is connected through the connecting vertical plate and the connecting hole of the connecting plate, the pin shaft is located on one side of the connecting vertical plate and a gap is provided, and the gap is The fixed connection has a fixed plate.

For the above settings, the connecting plate is inserted between the two connecting vertical plates, and then the connection is realized through the pin shaft, and the fixing plate is used for fixing, which is convenient for operation, so as to facilitate the disassembly of the connection between the walking bracket and the wall frame, and at the same time ensure the connection reliability.

Further, there are more than two lower limit brackets, including the first lower limit bracket and the second lower limit bracket, the first lower limit bracket and the second lower limit bracket are respectively arranged on both sides of the pressure roller, and the The first lower limit bracket and the second lower limit bracket are arranged in parallel, and the first lower limit bracket and the second lower limit bracket are fixedly installed on the steel plate by bolts.

The above arrangement can be used to install and connect the spring device and the travel switch by installing the bracket on both sides of the pressure roller.

Further, the pressure roller includes a pressure roller body and a pressure roller skin. Bearings are provided at both ends of the pressure roller body, and the rotating shaft passes through the inside of the pressure roller body through the bearings. The two ends of the rotating shaft are respectively connected to the One end of the spring device is connected, the pressure roller skin is fixed on the surface of the pressure roller body by screws, the pressure roller skin includes a pressure roller skin main body, and the inclined part is arranged on both sides of the pressure roller skin main body, so The cross-section of the pressure roller skin is circular, the cross-section of the pressure roller body is circular, one end of the inclined portion is connected to the surface of the pressure roller body, and the other end of the inclined portion is connected to the surface of the pressure roller. The surface of the skin is connected, and the radius of the cross section of the main body of the pressure roller is larger than the radius of the cross section of the body of the pressure roller.

With the above arrangement, the two ends of the pressure roller body are installed with bearings, so that the rotating shaft passes through the inside of the pressure roller body through the bearings, and the pressure roller can be rotated; through the connection between the rotating shaft and one end of the spring device, when the drum is not wound with a wire rope, it can The pressure roller is tightly pressed on the surface of the drum, and the two ends of the pressure roller skin are respectively provided with inclined parts. During the rising process of the steel wire rope, it is convenient for the steel wire rope to enter the bottom of the pressure roller from both ends of the pressure roller and lift the pressure roller. The roller is separated from the drum, which prevents the steel wire rope from being stuck on the steps of the pressure roller and cannot lift the pressure roller, thereby improving the working efficiency.

Further, there are more than two spring devices, and the two sides of the pressure roller are arranged in parallel. The spring device includes a guide seat, a spacer, a strut, a spring and a strut seat, and the guide seat is fixed by bolts. On the lower limit bracket, a through hole is provided on the end of the guide seat far away from the lower limit bracket, the spacer is arranged at both ends of the through hole on the guide seat, and the strut passes through the The through hole on the guide seat, one end of the strut is fixedly connected with the strut seat, the other end of the strut is fixedly connected with one end of the lower limit travel switch through a steel plate, and the spring sleeve is in the One end of the strut is connected to the bearing end of the pressure roller, one end of the spring is connected to the guide seat, and the other end of the spring is connected to the strut seat.

For the above configuration, by connecting the strut to the strut base and setting the spring sleeve at the end of the connection between the strut and the strut base, the pressure roller can be reset when the reel is not wrapped with a wire rope, so that the pressure roller can be pressed tightly on the reel. drum surface, it is recognized that the wire rope has reached the lower limit position.

Further, one end of the lower limit travel switch is connected to the strut of the spring device through a steel plate, the other end of the lower limit travel switch is fixed on the lower limit bracket by bolts, and the strut seat includes a first fixed plate and the second fixed plate, the first fixed plate and the second fixed plate are vertically arranged, and the position corresponding to the strut on the first fixed plate is provided with a strut mounting hole, and one end of the strut is fixedly installed in the strut mounting hole, and the strut The other end of the rod is provided with a limit bolt, the second fixed plate is provided with a rotating shaft mounting hole, and one side of the rotating shaft mounting hole is provided with a limiting column.

With the above settings, by connecting the lower limit travel switch with the spring device’s strut, the signal that the wire rope reaches the lower limit position can be transmitted to the control system, and then the reel cannot be lowered. By fixing one end of the strut to the strut Then one end of the rotating shaft is fixed on the strut seat through the limit column, so that the rotating shaft will not rotate, and a bearing is arranged between the rotating shaft and the pressure roller, so that the pressure roller can rotate, thereby reducing the pressure of the reel and the pressure roller. In addition, when the pressure roller is lifted, the strut seat is lifted and then the strut moves upward to achieve contact with the travel switch. The limit bolt on the other end of the strut prevents the strut from being separated from the guide seat when it moves downward. Good structural stability.

Further, the rope head fixing device includes a fixing piece, the fixing piece is provided with a rope groove matching the wire rope, and a counterbore matching the rope end of the steel wire rope, and the rope groove is arranged on the top of the fixing piece , the counterbore is arranged inside the fixing piece, one end of the rope groove communicates with the counterbore and one side of the fixing piece, the other end of the rope groove communicates with the other side of the fixing piece, the The bottom of the fixing piece is provided with a connection surface.

In the above setting, a rope groove matching the rope is provided on the top of the fixing piece, and a counterbore matching the rope head is set inside the fixing piece, and one end of the rope groove is connected with the counterbore, and the other end of the rope groove is connected with the rope head. The side is connected, so that when the rope is installed, the rope of the wire rope slides into the inside of the fixing piece through the rope groove on the top of the fixing piece, and then the head of the wire rope is inserted into the counterbore inside the fixing piece to realize the quick installation and fixing of the wire rope head ;When the rope is disassembled, only need to withdraw the rope end from the counterbore inside the fixing part, and then take out the rope through the rope groove on the top of the fixing part to complete the disassembly of the rope, so as to realize the rapid installation and disassembly of the rope and improve the working efficiency.

Further, the side surfaces on both sides of the top surface of the fixing member are arc-shaped, one side of the fixing member is provided with a bump, and the counterbore is arranged inside the side of the fixing member close to the bump, so The end of the counterbore close to the protruding block is provided with a tapered hole. The inclined part is arranged outwardly and upwardly relative to the direction of the axial symmetry line of the counterbore, and the first inclined part is also arranged on the protrusion, and the first inclined part is arranged outwardly and upwardly relative to the direction of the axially symmetrical line of the counterbore; The cross-section is arc-shaped, one end of the counterbore is connected to one end of the fixing piece near the bump, the other end of the counterbore is connected to one end of the rope groove, and the axis of symmetry of the counterbore is The included angle with the axis of symmetry of the rope groove is 170°-175°.

With the above settings, by setting the side shapes on both sides of the fixing piece as arc surfaces, it is convenient to weld the bottom of the fixing piece to the arc-shaped equipment, and it is also convenient to wrap the wire rope after sliding out of the rope groove; There is a bump on one side, and when the wire rope is pulled out, the bump prevents the wire rope from entering into other equipment for winding; it is convenient to fix the rope head further stably by setting the tapered hole, because the fixing part is located on one side of the fixing hole. The two ends of the side are provided with an inclined part and a first inclined part, so as to facilitate the movement of the rope during the process of entering other rope rafting equipment after the rope comes out of the rope groove; the cross section through the counterbore is set as an arc, It is convenient for the rope to be accommodated in the counterbore, so as to complete the fixing of the rope end; by setting the counterbore inside the fixing part and connecting the rope groove on the connecting part with the counterbore, the rope can be installed and disassembled conveniently and quickly; The axial symmetry line of the counterbore and the axis symmetry line of the rope groove are set to have a small angle, so that after the rope head is set in the counterbore, the rope is limited by the small angle to prevent the rope from being pulled out too quickly rope groove.

Further, the cross-sectional shape of the rope groove is set as a U shape, and one side of the opening of the rope groove is arranged on the upper end surface of the fixing member, and the size of the opening of the rope groove matches the diameter of the steel wire rope. The height of the end of the rope groove connected to the counterbore from the bottom of the fixing part is higher than the height of the end of the rope groove away from the counterbore from the bottom of the fixing part.

In the above configuration, the cross-sectional shape of the rope groove is set to U-shape, and the side of the rope groove opening is connected with the upper end surface of the fixing piece, so that the steel wire rope can slide in or out of the rope groove; The end of the rope groove away from the counterbore can make the steel wire rope tighten along the lower end of the rope groove, thereby improving the utilization rate of the steel wire rope.

Description of drawings

Fig. 1 is a left side view of the present invention.

Fig. 2 is a front view of the present invention.

Figure 3 is a right side view of the present invention.

Fig. 4 is a front view of the connection between the lower limit device of the present invention and some reels.

Fig. 5 is a side view of the lower limiting device of the present invention.

FIG. 6 is an enlarged view of B in FIG. 4 .

Fig. 7 is a front view of the rope end fixing device of the present invention.

Fig. 8 is a side view of the rope end fixing device of the present invention.

Fig. 9 is a top view of the rope end fixing device of the present invention.

Reference signs:

1. Guide rail; 2. Lateral pulley device; 3. Traveling bracket 1; 4. Pin shaft device; 6. Traveling drive motor; 7. Wall frame 1; 9. Rope head fixing device; 10. Upper limit device; 101. Upper limit travel switch; 102, first steel wire rope; 103, heavy hammer; 11, wall frame two; 12, gearbox mounting plate; 13, motor mounting foot; 15, lower limit device; 16, drive shaft; Two; 18, walking pulley device; 19, bearing; 20, motor support; 21, left-handed reel; 22, right-handed reel; 25, rack; 26, gear; 27, reel drive motor; 411, connection vertical Plate; 412, connecting plate; 413, fixed plate; 414, pin shaft; 415, notch; 911, fixing piece; 912, rope groove; 913, counterbore; 914, bump; Hole; 9141, first inclined part; 9142, inclined part; 151, lower limit bracket one; 152, pressure roller skin; 153, pressure roller body; 154, rotating shaft; 155, guide seat 156, spacer sleeve; 157, strut ; 158, steel plate; 159, lower limit bracket two; 1510, backing plate; 1511, lower limit travel switch; leather surface; 15131, the first fixing plate; 15132, the second fixing plate.

Detailed ways

Embodiments of the present invention will be further described in detail below in conjunction with the drawings and specific implementation methods.

As shown in Figures 1-9, the embodiment of the present invention provides a double-drum device, including a wall frame, a walking device, two reels arranged side by side, a rope end fixing device 9, two reel drive motors 27 and a The lower limit device 15, the wall frame is provided with more than two, and the wall frame is provided with two in the present embodiment, comprises wall frame one 7 and wall frame two 11, and wall frame one 7 and wall frame two 11 are respectively arranged on the reel. Two ends, wall frame one 7 and wall frame two 11 are arranged in parallel, and reel drive motor 27 is arranged and installed on the wall frame two 11 far away from the end of rope head fixing device 9, and wall frame two 11 is provided with reduction box mounting plate 12; In this embodiment, the two reels are respectively a left-handed reel 21 and a right-handed reel 22. The traveling device includes a traveling support, a pulley device, a traveling drive motor 6 and a pin device 4. The traveling support is provided with more than two, including a walking Support one 3 and walking support two 17, walking support one 3 and walking support two 17 are respectively provided with walking pulley device 18, and walking support one 3 and walking support two 17 are arranged in parallel; Pulley device comprises walking pulley device 18 and lateral pulley Device 2, the walking pulley device 18 is arranged on the walking support, the lateral pulley device 2 is arranged on the walking pulley device 18 away from one end of the walking support, and one end of the walking drive motor 6 is installed on the outside of a pin shaft device 4, and the walking drive The other end of motor 6 is installed on the motor support 20, wherein the motor support 20 is fixed on the wall frame, the output shaft end of the walking drive motor 6 is connected with one end of the drive shaft 16, and the drive shaft 16 is arranged on the rack 25. The gear 26 of walking, the other end of drive shaft 16 is rotationally connected with bearing 19, and bearing 19 is arranged and installed on pin device 4 upper ends, and pin device 4 is fixedly connected with wall frame respectively by pin.

As shown in Figures 2 and 3, in the present embodiment, there are two pin devices 4, which are respectively arranged at the two ends of the walking bracket. The connecting plate 412 on the frame and the fixing plate 413 and pin 414 on one side of the connecting vertical plate 411, the connecting vertical plate and the connecting plate are provided with connecting holes corresponding to the pin shaft, and the connecting plate is arranged between the connecting vertical plates And the pin shaft is connected through the connecting hole of the connecting vertical plate and the connecting plate, and the pin shaft is located at one side of the connecting vertical plate to be provided with a gap 415 , and a fixed plate 414 is fixedly connected in the gap.

When the walking bracket and the wall frame need to be fixedly connected, the connecting plate is clamped between the two connecting vertical plates, and then the connection is realized through the pin shaft, and the fixing plate is used to fix it, so that it is convenient to disassemble the space between the walking bracket and the wall frame connection while ensuring the reliability of the connection.

In this embodiment, as shown in Figure 1, an upper limit device 10 is provided, and the two ends of the upper limit device 10 are respectively connected by a wall frame one 7 and a wall frame two 11, and the upper limit device 10 includes an upper limit travel switch 101, a second A steel wire rope 102 and a weight 103, the first steel wire rope 102 is connected to the upper limit travel switch 101, and when the first steel wire rope 102 is in a tensioned state, the upper limit travel switch 101 is in a non-working state, the other end of the first steel wire rope 102 is connected to the weight 103 connected, the wire rope on the reel passes through the weight 103 and then connects with the hook. When the hook rises to the upper limit device 10, the hook withstands the weight 103 so that the first wire rope connected to the upper limit travel switch 101 102 is in a relaxed state, so that the work control of the upper limit travel switch 101 does not carry out the ascending work, and the control of the upper limit travel switch 101 does not carry out the ascending work when it works.

As shown in Figure 4-6, the lower limit device 15 includes a pressure roller, a spring device and a lower limit travel switch 1511, the lower limit bracket includes a lower limit bracket one 151 and a lower limit bracket two 159, a lower limit bracket one 151 and a lower limit bracket Bracket two 159 are respectively arranged on both sides of the pressure roller, and lower limit bracket one 151 and lower limit bracket two 159 are arranged in parallel, and one end of lower limit bracket one 151 and one end 159 of lower limit bracket two are fixed on the steel plate 158 by bolts , the other end of the lower limit bracket 151 and the other end 159 of the lower limit bracket two are fixed on the backing plate 1510 by bolts, the spring device is provided with more than two, and the two sides of the pressure roller are arranged in parallel, the spring device includes a guide seat 155 , spacer 156, strut 157, spring 1512 and strut seat 1513, the guide seat 155 is fixed on the lower limit bracket by bolts, the end of the guide seat 155 away from the lower limit bracket is provided with a through hole, and the spacer 156 is arranged on the guide The two ends of the through hole on the seat 155, the strut 157 passes through the through hole on the guide seat 155, and one end of the strut 157 is fixedly connected with the strut seat 1513, and the other end of the strut 157 passes through the steel plate 158 and the lower limit travel switch 1511 One end of the spring 1512 is fixedly connected, and the spring 1512 is sleeved on the end connecting the strut 157 and the bearing end of the pressure roller. The fixed plate 15131 and the second fixed plate 15132, the first fixed plate 15131 and the second fixed plate 15132 are vertically arranged, and the position corresponding to the strut 157 on the first fixed plate 15131 is provided with a strut installation hole, and one end of the strut 157 is fixedly installed In the pole installation hole, the other end of the pole 157 is provided with a limit bolt, the second fixing plate 15132 is provided with a shaft installation hole, and one side of the shaft installation hole is provided with a limit column.

As shown in Figure 4, the lower limit travel switch 1511 is arranged on the lower limit bracket two 159 on one side of the pressure roller, and one end of the lower limit travel switch 1511 is connected with the strut 157 of the spring device by a steel plate 158, and the lower limit travel switch 1511 The other end is fixed on the lower limit bracket 2 159 by bolts, and the spring device is movable between the lower limit travel switch 1511 and the two ends of the pressure roller. 1511 works, and when the spring is compressed, one end of the lower limit travel switch 1511 is connected with the spring device to trigger the lower limit travel switch 1511 to not work; the pressure roller includes a pressure roller body 153 and a pressure roller skin 152, and the two ends of the pressure roller body 143 are provided with bearings , the rotating shaft 154 passes through the inside of the pressure roller body 153 through bearings, and the two ends of the rotating shaft 154 are respectively connected with one end of the spring device, and the pressure roller skin 152 is fixed on the surface of the pressure roller body 153 by screws, and the pressure roller skin 152 includes a pressure roller skin Main body, the second inclined portion is arranged on both sides of the main body of the pressure roller skin, the cross section of the pressure roller skin 152 is circular, and the cross section of the pressure roller body 153 is circular, as shown in Figure 6, the inclination of the second inclined portion One end of the surface 1514 is connected to the surface 1515 of the roller body, and the other end of the inclined surface 1514 of the second inclined part is connected to the surface 1516 of the roller skin.

As shown in Figure 2-3, the reel includes a left-handed reel 21 and a right-handed reel 22, and the two ends of the reel are respectively connected to the wall frame one 7 and the wall frame two 11 in rotation, and the two reel drive motors 27 are respectively set On the wall frame two 11 at one end of the reel, and the output end of the reel drive motor 27 is connected with one end of the reel, a gap is provided between the two reels, and the pressure roller is arranged in the gap between the reels, and The two reels are arranged symmetrically with respect to the pressure roller, and the pressure rollers are respectively connected to the two reels. When the left-hand reel 21 rotates counterclockwise, the steel wire rope on the left-hand reel 21 performs a lifting action, and goes up and down along the left-hand reel 21. The rope groove on the left-handed drum 21 is wound on the left-handed drum 21, and when the left-handed drum 21 rotates clockwise, the steel wire rope on the left-handed drum 21 performs a lowering action, and leaves the left-handed drum 21 along the rope groove on the left-handed drum 21; When the drum 22 rotates clockwise, the steel wire rope on the right-handed drum 22 performs a lifting action, and is wound on the right-handed drum 22 along the rope groove on the right-handed drum 22. When the right-handed drum 22 rotates counterclockwise, The wire rope on the right-handed reel 22 carries out the lowering action, and breaks away from the right-handed reel 22 along the rope groove on the right-handed reel 22 .

As shown in Figure 3, the lower limit bracket is fixedly connected to the upper end of the wall frame, and the rope end fixing device 9 is arranged at one end of the reel, as shown in Figure 7-9, the rope end fixing device 9 includes a fixing part 911, and the fixing part 911 A rope groove 912 matching the steel wire rope and a counterbore 913 matching the rope end of the steel wire rope are arranged on the upper surface. 914, the counterbore 913 is arranged inside the side of the fixing member 911 close to the protrusion 914, and the end of the counterbore 913 close to the end of the protrusion 914 is provided with a tapered hole 9131, and the diameter of the tapered hole 9131 is larger than the diameter of the counterbore 913 On the side of the fixing piece 911 close to the counterbore 913 and on the other side corresponding to the bump 914, an inclined portion 9142 is provided. There is a first inclined part 9141, and the first inclined part 9141 is set outward and upward relative to the axial symmetry line of the counterbore 913; The other end of the counterbore 913 is connected to one end of the rope groove 912, the angle between the axis of symmetry of the counterbore 913 and the axis of symmetry of the rope groove 912 is 170°-175°, and the rope groove 912 is set On the top of the fixing part 911, the counterbore 913 is arranged in the inside of the fixing part 911, and the cross-sectional shape of the rope groove 912 is set to a U shape, and one side of the opening of the rope groove 912 is arranged on the upper end surface 915 of the fixing part 911, and the rope groove 912 The size of the opening matches the diameter of the wire rope. The height of the end of the rope groove 912 connected to the counterbore 913 from the bottom of the fixing piece 911 is higher than the height of the end of the rope groove 912 away from the counterbore 913 from the bottom of the fixing piece 911. The rope groove One end of 912 communicates with the counterbore 913 and one side of the fixing part 911, the other end of the rope groove 912 communicates with the other side of the fixing part 911, and the bottom of the fixing part 911 is provided with a connecting surface, which is convenient for welding and connecting on the reel .

In this embodiment, when the wire rope end is installed on the rope end fixing device 9, the steel wire rope is first placed in the rope groove 912 through the opening of the rope groove 912, and then the steel wire rope is slid into the rope end fixing device along the rope groove 912. 9 inside, and then the steel wire rope head is inserted into the counterbore 913 inside the rope head fixing device 9 to block, so that the steel wire rope head can be quickly installed and fixed; when the steel wire rope head is disassembled from the rope head fixing device 9, Pull the wire rope end out of the counterbore 913 inside the rope end fixing device 9, slide the wire rope out along the rope groove 912 at the top of the rope end fixing device 9, and then take out the wire rope through the opening of the rope groove 912, so that the wire rope head can be quickly Disassemble.

Claims (10)

1. A double-drum device, characterized in that: it comprises a wall frame, a traveling device, two reels arranged side by side, a rope head fixing device, two reel driving motors and a lower limit device, and one end of the traveling device is in contact with the wall The frame is fixedly connected, and the traveling device is used to drive the wall frame to move on the rack and guide rail on the crane arm frame. The traveling device includes a traveling bracket, a pulley device, a traveling drive motor, a drive shaft and a pin device, and the pulley device includes a traveling pulley. device and a lateral pulley device, the walking pulley device is arranged on the walking support, the lateral pulley device is arranged on the walking pulley device at an end away from the walking support, and the fixed end of the walking drive motor Set on one side of the pin shaft device, the output shaft end of the walking drive motor is fixedly connected to one end of the drive shaft, the drive shaft is provided with a gear that travels on the rack, and the other end of the drive shaft is connected to the bearing in rotation , the pin shaft device is fixedly connected to the wall frame, the lower limit device includes a pressure roller, a spring device and a lower limit travel switch, the lower limit bracket is installed on both sides of the pressure roller, and the spring device is set On both sides of the pressure roller, one end of the spring device is connected to the lower limit bracket, the other end of the spring device is connected to one end of the pressure roller, and the lower limit bracket is respectively Connected to both ends of the pressure roller, the lower limit travel switch is set on the lower limit bracket on one side of the pressure roller, and the spring device is movable between the lower limit travel switch and the two ends of the pressure roller , the spring device includes a spring. When the spring is in a natural state, the pressure roller fits the reel, and the lower limit travel switch works. When the spring is compressed, one end of the travel switch is connected with the spring device to trigger the lower limit travel switch. Both sides of the pressure roller are provided with inclined parts inclined upwards and inwards, the wall frame is arranged at both ends of the reel, and the two ends of the reel are respectively connected to the wall frame in rotation, and the reel The reel drive motor is arranged on the wall frame at one end of the reel, and the output end of the reel drive motor is connected to one end of the reel, a gap is provided between the two reels, and the pressure roller is arranged on In the gap between the reels, and the two reels are arranged symmetrically with respect to the pressure rollers, and the pressure rollers are respectively connected to the two reels, the lower limit bracket is fixedly connected to the upper end of the wall frame, The rope end fixing device is arranged at one end of the reel. 2. A kind of double-drum device according to claim 1, characterized in that: the walking frame is provided with more than two, including a walking frame one and a walking frame two, and the walking frame one and the walking frame two are respectively It is arranged on the pulley device, and the first walking support and the second walking support are arranged in parallel; more than two wall supports are provided, including the first wall support and the second wall support, and the first wall support and the second wall support are respectively It is arranged at both ends of the reel, the wall frame one and the wall frame two are arranged in parallel, the reel driving motor is arranged and installed on the wall frame two far away from the end of the rope head fixing device, and the wall frame two There is a gear box mounting plate on it. 3. A double-drum device according to claim 1, characterized in that: the pin shaft device includes two connecting risers arranged on the walking support, a connecting plate arranged on the wall frame, and a connecting riser located between the connecting risers. The fixed plate on the side and the pin shaft, the connecting vertical plate and the connecting plate are provided with connecting holes corresponding to the pin shaft, the connecting plate is arranged between the connecting vertical plates and the pin shaft is connected through the connecting holes of the connecting vertical plate and the connecting plate , the pin shaft is located on one side of the connecting vertical plate to be provided with a notch, and a fixed plate is fixedly connected in the notch. 4. A double-roller device according to claim 1, characterized in that: there are more than two lower limit brackets, including a lower limit bracket one and a lower limit bracket two, and the lower limit bracket one and the lower limit bracket Two position brackets are respectively arranged on both sides of the pressure roller, and the first lower limit bracket and the second lower limit bracket are arranged in parallel, and the first lower limit bracket and the second lower limit bracket are fixedly installed on the steel plate by bolts. 5. A double-drum device according to claim 1, characterized in that: the pressure roller comprises a pressure roller body and a pressure roller skin, bearings are arranged at both ends of the pressure roller body, and the rotating shaft passes through the bearings. The inside of the pressure roller body, the two ends of the rotating shaft are respectively connected to one end of the spring device, the pressure roller skin is fixed on the surface of the pressure roller body by screws, and the pressure roller skin includes the pressure roller skin main body , the inclined portion is arranged on both sides of the main body of the pressure roller skin, the cross section of the pressure roller skin is circular, the cross section of the pressure roller body is circular, one end of the inclined portion is connected to the pressure roller The body surface is connected, the other end of the inclined portion is connected to the surface of the press roll skin, and the cross-sectional radius of the press roll skin main body is greater than the radius of the cross-section of the press roll body. 6. A double-drum device according to claim 5, characterized in that: the spring device has more than two, and the two sides of the pressure roller are arranged in parallel, and the spring device includes a guide seat, a spacer, A strut, a spring and a strut seat, the guide seat is fixed on the lower limit bracket by bolts, the end of the guide seat away from the lower limit bracket is provided with a through hole, and the spacer is arranged on the The two ends of the through hole on the guide seat, the brace passes through the through hole on the guide seat, one end of the brace is fixedly connected with the brace seat, and the other end of the brace is connected to the brace through a steel plate. One end of the lower limit travel switch is fixedly connected, the spring is sleeved on the end of the support rod and the bearing end of the pressure roller, one end of the spring is connected to the guide seat, and the other end of the spring is connected to the bearing end of the pressure roller. Connect the strut seat. 7. A double-roller device according to claim 6, characterized in that: one end of the lower limit travel switch is connected to the strut of the spring device through a steel plate, and the other end of the lower limit travel switch is connected by a bolt fixed on the lower limit bracket; the strut base includes a first fixed plate and a second fixed plate, the first fixed plate and the second fixed plate are vertically arranged, and the position corresponding to the strut on the first fixed plate is provided with a strut installation One end of the strut is fixedly installed in the strut mounting hole, the other end of the strut is provided with a limit bolt, the second fixed plate is provided with a rotating shaft mounting hole, and one side of the rotating shaft mounting hole is provided with a limiting column. 8. A double-drum device according to claim 1, characterized in that: the rope end fixing device includes a fixing piece, and the fixing piece is provided with a rope groove matching the steel wire rope, and a rope end matching with the steel wire rope. Matching counterbore, the rope groove is arranged on the top of the fixing piece, the counterbore is arranged inside the fixing piece, one end of the rope groove communicates with the counterbore and one side of the fixing piece, the The other end of the rope groove communicates with the other side of the fixing piece, and the bottom of the fixing piece is provided with a connecting surface. 9. A double-drum device according to claim 8, characterized in that: the side surfaces on both sides of the top surface of the fixing member are arc-shaped, one side of the fixing member is provided with a bump, and the sinker The hole is arranged inside the side of the fixing member close to the bump, and the end of the counterbore close to the end of the bump is provided with a tapered hole, the diameter of the tapered hole is larger than the diameter of the counterbore, and the fixing member is close to the counterbore. One side of the hole is provided with an inclined portion on the other side corresponding to the protrusion, and the inclined portion is arranged outward and upward relative to the axial symmetry line of the counterbore. The direction of the symmetrical line of the hole axis is set outwards and upwards; the cross-section of the counterbore is set to be arc-shaped, one end of the counterbore is connected to the end of the fixing member near the bump side, and the other end of the counterbore is connected to the One end of the rope groove is connected, and the angle between the axis of symmetry of the counterbore and the axis of symmetry of the rope groove is 170°-175°. 10. A double-roller device according to claim 8, characterized in that: the cross-sectional shape of the rope groove is set to a U shape, and one side of the opening of the rope groove is arranged on the upper end surface of the fixing member, The size of the opening of the rope groove matches the diameter of the wire rope, and the distance between the end of the rope groove connected to the counterbore and the bottom of the fixing piece is higher than the distance between the end of the rope groove far away from the counterbore and the fixing piece The height of the bottom.

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