CN216190593U

CN216190593U - Tower crane counterweight

Info

Publication number: CN216190593U
Application number: CN202122342704.5U
Authority: CN
Inventors: 刘旭; 马姗; 姜传军
Original assignee: Xuzhou Xulong Casting Machinery Co ltd
Current assignee: Xuzhou Xulong Casting Machinery Co ltd
Priority date: 2021-09-27
Filing date: 2021-09-27
Publication date: 2022-04-05
Anticipated expiration: 2031-09-27

Abstract

The utility model discloses a tower crane counterweight, which adopts the technical scheme that: the balance weight type reciprocating screw rod comprises a first shell, wherein a balance weight is fixedly arranged at the top of the first shell, a second shell is fixedly arranged on one side of the first shell, a traction mechanism and a fixing mechanism are arranged on one side of the first shell, the traction mechanism comprises a second reciprocating screw rod, the second reciprocating screw rod is arranged on one side of the first shell, the second reciprocating screw rod penetrates through the side wall of the first shell and is connected with the side wall of the first shell through a bearing, a supporting bottom plate is arranged on the other side of the second reciprocating screw rod, the second reciprocating screw rod is connected with the supporting bottom plate through a bearing, the supporting bottom plate is fixedly connected with the first shell, and a second bearing seat is sleeved outside the second reciprocating screw rod, so that the balance weight type reciprocating screw rod has the beneficial effects that: reduce balanced heavy hanging cost, fixed more firm while avoids dropping, easy to assemble and dismantlement, and need not artifical manual traction.

Description

Tower crane counterweight

Technical Field

The utility model relates to the technical field of tower cranes, in particular to a tower crane counterweight.

Background

Generally, a balance point is achieved by heavy objects on two sides of a traction machine, one side is a lift car, and the other side is a balance weight, so that the work of the traction machine is minimum, the balance weight is often called as a counterweight, the term is called as the balance weight, a balance weight device is used as the balance weight when a crane is used for hoisting, and is one of important components of the crane, and therefore, the balance weight device plays a decisive role in the hoisting performance of the crane.

The prior art has the following defects: when the existing counterweight device is installed, the movable counterweight needs to be hung on the lower surface of the fixed counterweight by virtue of a counterweight bottom plate with a stand column, so that the cost is high, meanwhile, the fixed counterweight bottom plate is not firm enough and has the risk of falling, the installation and the disassembly are inconvenient, and the manual traction is very troublesome.

Therefore, the utility model is necessary to invent the counterweight of the tower crane.

SUMMERY OF THE UTILITY MODEL

Therefore, the utility model provides a tower crane counterweight, which is fixed and dragged by a traction mechanism and a fixing mechanism, so as to solve the problems of high cost, insecure fixation, falling danger, inconvenience for disassembling a table and great trouble for manual traction.

In order to achieve the above purpose, the utility model provides the following technical scheme: a tower crane counterweight comprises a first shell, wherein the top of the first shell is fixedly provided with a counterweight, one side of the first shell is fixedly provided with a second shell, and one side of the first shell is provided with a traction mechanism and a fixing mechanism;

the traction mechanism comprises a second reciprocating screw rod, the second reciprocating screw rod is arranged on one side of the first shell, the second reciprocating screw rod penetrates through the side wall of the first shell and is connected with the side wall of the first shell through a bearing, a supporting base plate is arranged on the other side of the second reciprocating screw rod, the second reciprocating screw rod is connected with the supporting base plate through a bearing, the supporting base plate is fixedly connected with the first shell, a second bearing seat is sleeved outside the second reciprocating screw rod, the second reciprocating screw rod is connected with the second bearing seat through a ball nut pair, a pull rod is fixedly arranged on one side of the second bearing seat and penetrates through the supporting base plate, a hook is fixedly arranged on one side of the pull rod and extends into a hook groove, and the hook groove is fixedly connected with the balance weight;

the fixing mechanism comprises a base, the base is fixedly arranged on one side of a first shell, a supporting rod is arranged on one side of the base, the base is movably connected with the supporting rod through a rotating shaft, a second connecting rod is fixedly arranged on one side of the supporting rod, a connecting plate is fixedly connected with one side of the second connecting rod, a clamping plate is arranged on one side of the connecting plate, the connecting plate is movably connected with the clamping plate through a rotating shaft, a fixing component is fixedly arranged at the bottom of the supporting rod and comprises a first pressing plate, the first pressing plate is fixedly connected with the supporting rod, a supporting frame is fixedly connected between the first pressing plate and the supporting rod, a telescopic rod is arranged on one side of the first pressing plate, the first pressing plate is movably connected with the telescopic rod through a rotating shaft, the other end of the telescopic rod is fixedly connected with the side wall of the first shell, and a second spring is fixedly arranged on the outer portion of the telescopic rod.

Preferably, the fixing assembly comprises a second pressing plate, the second pressing plate is fixedly connected with the supporting rod, a supporting frame is fixedly connected between the second pressing plate and the supporting rod, a telescopic rod is arranged on one side of the second pressing plate, the second pressing plate is movably connected with the telescopic rod through a rotating shaft, the other end of the telescopic rod is fixedly connected with the side wall of the first shell, and a second spring is fixedly arranged outside the telescopic rod.

Preferably, the outside cover of second connecting rod is equipped with the sleeve, sleeve one side is equipped with the third connecting rod, the sleeve passes through pivot swing joint with the third connecting rod, the fixed baffle that is equipped with in sleeve top, third connecting rod one side is equipped with the head rod, the third connecting rod passes through pivot swing joint with the head rod, head rod and splint fixed connection.

Preferably, the outside cover of second connecting rod is equipped with first spring, first spring both ends respectively with sleeve and connecting plate fixed connection.

Preferably, the inside fixed motor that is equipped with of second casing, motor output fixedly connected with transmission shaft, transmission shaft one end is equipped with first reciprocal lead screw, the transmission shaft passes through one-way bearing with first reciprocal lead screw and is connected, first reciprocal lead screw extends into first casing inside and passes through the bearing with first casing and be connected, the outside cover of first reciprocal lead screw is equipped with primary shaft bearing, first reciprocal lead screw passes through ball nut pair with primary shaft bearing and is connected.

Preferably, a supporting top plate is fixedly arranged on one side of the first shell and connected with one end of the first reciprocating screw rod through a bearing, a sliding groove is formed in one side of the supporting top plate, and the first bearing seat extends into the sliding groove.

Preferably, the transmission shaft and the outside of the second reciprocating screw rod are both sleeved with belt pulleys, the transmission shaft is connected with the belt pulleys through one-way bearings, the second reciprocating screw rod is fixedly connected with the belt pulleys, and belts are arranged outside the belt pulleys.

The utility model has the beneficial effects that:

1. according to the utility model, the second reciprocating screw rod rotates to drive the second bearing seat to do reciprocating motion, so that the second bearing seat drives the pull rod to move, the pull rod moves to drive the hook to move, the hook moves to drive the hook groove and the balance weight to move, when the balance weight is contacted with the supporting bottom plate, traction is finished, the cost of manual traction is reduced, the traction efficiency is higher, and the installation speed is accelerated;

2. the first reciprocating screw rod rotates to drive the first bearing seat to reciprocate, the first bearing seat moves and pushes the baffle plate to move, the baffle plate pushes the sleeve to move and pushes the second pressing plate at the bottom of the supporting rod downwards to press the balance weight, the supporting frame between the second pressing plate and the supporting rod plays a supporting role, the first connecting rod drives the clamping plate to rotate on the connecting plate, the clamping plate clamps the balance weight, the telescopic rod and the second spring on one side of the second pressing plate play a certain damping role, and meanwhile, the first reciprocating screw rod has the function of supporting the second pressing plate, so that looseness is avoided, the first reciprocating screw rod is more firm in fixation, meanwhile, the falling is avoided, and the mounting and the dismounting are convenient.

Drawings

FIG. 1 is a schematic view of the overall structure provided by the present invention;

FIG. 2 is an enlarged view of the utility model at A in FIG. 1;

FIG. 3 is an enlarged view at B of FIG. 1 in accordance with the present invention;

fig. 4 is a schematic structural diagram of embodiment 2 provided in the present invention.

In the figure: the device comprises a first shell 1, a first pressing plate 2, a supporting frame 3, a connecting plate 4, a clamping plate 5, a first spring 6, a first connecting rod 7, a second connecting rod 8, a third connecting rod 9, a sleeve 10, a baffle 11, a supporting rod 12, a first reciprocating screw rod 13, a first bearing block 14, a supporting top plate 15, a motor 16, a second shell 17, a base 18, a telescopic rod 19, a second spring 20, a second reciprocating screw rod 21, a second bearing block 22, a pull rod 23, a supporting bottom plate 24, a balance weight, a belt pulley 26, a transmission shaft 27, a belt 28, a hook 29, a hook groove 30 and a second pressing plate 31.

Detailed Description

The preferred embodiments of the present invention will be described in conjunction with the accompanying drawings, and it will be understood that they are described herein for the purpose of illustration and explanation and not limitation.

Embodiment 1, referring to fig. 1 to 3, a counterweight for a tower crane according to the present invention includes a first housing 1, a counterweight 25 is fixedly disposed on a top of the first housing 1, a second housing 17 is fixedly disposed on one side of the first housing 1, and a traction mechanism and a fixing mechanism are disposed on one side of the first housing 1;

the traction mechanism comprises a second reciprocating screw rod 21, the second reciprocating screw rod 21 is arranged on one side of the first shell 1, the second reciprocating screw rod 21 penetrates through the side wall of the first shell 1 and is connected with the side wall of the first shell 1 through a bearing, a supporting base plate 24 is arranged on the other side of the second reciprocating screw rod 21, the second reciprocating screw rod 21 is connected with the supporting base plate 24 through a bearing, the supporting base plate 24 is fixedly connected with the first shell 1, a second bearing seat 22 is sleeved outside the second reciprocating screw rod 21, the second reciprocating screw rod 21 is connected with the second bearing seat 22 through a ball nut pair, a pull rod 23 is fixedly arranged on one side of the second bearing seat 22, the pull rod 23 penetrates through the supporting base plate 24, a hook 29 is fixedly arranged on one side of the pull rod 23, the hook 29 extends into a hook groove 30, and the hook groove 30 is fixedly connected with a balance weight 25;

the fixing mechanism comprises a base 18, the base 18 is fixedly arranged on one side of the first shell 1, a support rod 12 is arranged on one side of the base 18, the base 18 is movably connected with the support rod 12 through a rotating shaft, a second connecting rod 8 is fixedly arranged on one side of the support rod 12, a connecting plate 4 is fixedly connected with one side of the second connecting rod 8, a clamping plate 5 is arranged on one side of the connecting plate 4, the connecting plate 4 is movably connected with the clamping plate 5 through a rotating shaft, a fixing component is fixedly arranged at the bottom of the support rod 12 and comprises a first pressing plate 2, the first pressing plate 2 is fixedly connected with the support rod 12, a support frame 3 is fixedly connected between the first pressing plate 2 and the support rod 12, an expansion rod 19 is arranged on one side of the first pressing plate 2, the first pressing plate 2 is movably connected with the expansion rod 19 through a rotating shaft, and the other end of the expansion rod 19 is fixedly connected with the side wall of the first shell 1, the outside fixed second spring 20 that is equipped with of telescopic link 19, first casing 1 has the effect of supporting balanced weight 25, and first clamp plate 2 is convenient fixed with balanced weight 25, and support frame 3 has the effect of supporting first clamp plate 2, and splint 5 makes balanced weight 25 centre gripping more firm.

Further, 8 outside covers of second connecting rod are equipped with sleeve 10, sleeve 10 one side is equipped with third connecting rod 9, sleeve 10 and third connecting rod 9 are through pivot swing joint, the fixed baffle 11 that is equipped with in sleeve 10 top, 9 one side of third connecting rod is equipped with head rod 7, third connecting rod 9 and head rod 7 are through pivot swing joint, head rod 7 and splint 5 fixed connection,

sleeve

10 and 11 combinations of baffle can promote splint 5 and rotate.

Further, the outside cover of second connecting rod 8 is equipped with first spring 6, first spring 6 both ends respectively with sleeve 10 and connecting plate 4 fixed connection, first spring 6 has shock attenuation and guard action.

Further, a motor 16 is fixedly arranged inside the second shell 17, a transmission shaft 27 is fixedly connected to an output end of the motor 16, a first reciprocating screw 13 is arranged at one end of the transmission shaft 27, the transmission shaft 27 is connected with the first reciprocating screw 13 through a one-way bearing, the first reciprocating screw 13 extends into the first shell 1 and is connected with the first shell 1 through a bearing, a first bearing seat 14 is sleeved outside the first reciprocating screw 13, the first reciprocating screw 13 is connected with the first bearing seat 14 through a ball nut pair, and the first bearing seat 14 is in contact with the baffle 11 to push the sleeve 10 to move.

Further, a supporting top plate 15 is fixedly arranged on one side of the first shell 1, the supporting top plate 15 is connected with one end of the first reciprocating screw rod 13 through a bearing, a sliding groove is formed in one side of the supporting top plate 15, the first bearing seat 14 extends into the sliding groove, and the sliding groove prevents the first bearing seat 14 from rotating.

Further, the drive shaft 27 and the outside of the second reciprocating screw rod 21 are both sleeved with a belt pulley 26, the drive shaft 27 is connected with the belt pulley 26 through a one-way bearing, the second reciprocating screw rod 21 is fixedly connected with the belt pulley 26, a belt 28 is arranged outside the belt pulley 26, and the belt pulley 26 and the belt 28 are combined to have a driving function.

The using process of the utility model is as follows: when the utility model is used, the utility model is connected with an external power supply, when in use, a hook 29 is hung in a hook groove 30 at one side of a balance weight 25, a motor 16 is started and drives a transmission shaft 27 to rotate forwards, the transmission shaft 27 rotates forwards and drives a belt pulley 26 to rotate, the transmission shaft 27 is connected with a first reciprocating screw rod 13 through a one-way bearing, the first reciprocating screw rod 13 cannot rotate when the transmission shaft 27 rotates forwards, the belt pulley 26 rotates and drives a belt 28 to rotate, the belt pulley 26 on a second reciprocating screw rod 21 rotates and drives the second reciprocating screw rod 21 to rotate together, the second reciprocating screw rod 21 rotates and drives a second bearing seat 22 to do reciprocating motion, the second bearing seat 22 drives a pull rod 23 to move, the pull rod 23 moves and drives the hook 29 to move, the hook 29 moves and drives the hook groove 30 and the balance weight 25 to move, when the balance weight 25 is contacted with a support bottom plate 24, an output shaft of the motor 16 rotates backwards, the motor 16 drives the transmission shaft 27 to rotate backwards, the transmission shaft 27 is connected with the belt pulley 26 through a one-way bearing, the belt pulley 26 cannot rotate when the transmission shaft 27 rotates reversely, the transmission shaft 27 drives the first reciprocating screw rod 13 to rotate reversely, the first reciprocating screw rod 13 drives the first bearing seat 14 to reciprocate, the first bearing seat 14 moves and pushes the baffle 11 to move, the baffle 11 pushes the sleeve 10 to move and presses the balance weight 25 downwards by the first pressing plate 2 at the bottom of the supporting rod 12, the supporting frame 3 between the first pressing plate 2 and the supporting rod 12 plays a supporting role, the sleeve 10 pushes the first spring 6 on the surface of the second connecting rod 8 to compress, so that the third connecting rod 9 moves along with the sleeve 10, the third connecting rod 9 pushes the first connecting rod 7 to rotate, the first connecting rod 7 drives the clamping plate 5 to rotate on the connecting plate 4, so that the clamping plate 5 clamps the balance weight 25, and the telescopic rod 19 and the second spring 20 on one side of the first pressing plate 2 play a certain damping role, simultaneously, the device has the function of supporting the first pressing plate 2, avoids loosening, reduces the cost of manual traction, and is convenient to mount and dismount.

In embodiment 2, referring to fig. 4, the fixing assembly of the counterweight for the tower crane provided by the utility model comprises a second pressing plate 31, the second pressing plate 31 is fixedly connected with a support rod 12, a support frame 3 is fixedly connected between the second pressing plate 31 and the support rod 12, an expansion link 19 is arranged on one side of the second pressing plate 31, the second pressing plate 31 is movably connected with the expansion link 19 through a rotating shaft, the other end of the expansion link 19 is fixedly connected with the side wall of the first housing 1, and a second spring 20 is fixedly arranged outside the expansion link 19.

The using process of the utility model is as follows: when the utility model is used, the utility model is connected with an external power supply, when in use, a hook 29 is hung in a hook groove 30 at one side of a balance weight 25, a motor 16 is started and drives a transmission shaft 27 to rotate forwards, the transmission shaft 27 rotates forwards and drives a belt pulley 26 to rotate, the transmission shaft 27 is connected with a first reciprocating screw rod 13 through a one-way bearing, the first reciprocating screw rod 13 cannot rotate when the transmission shaft 27 rotates forwards, the belt pulley 26 rotates and drives a belt 28 to rotate, the belt pulley 26 on a second reciprocating screw rod 21 rotates and drives the second reciprocating screw rod 21 to rotate together, the second reciprocating screw rod 21 rotates and drives a second bearing seat 22 to do reciprocating motion, the second bearing seat 22 drives a pull rod 23 to move, the pull rod 23 moves and drives the hook 29 to move, the hook 29 moves and drives the hook groove 30 and the balance weight 25 to move, when the balance weight 25 is contacted with a support bottom plate 24, an output shaft of the motor 16 rotates backwards, the motor 16 drives the transmission shaft 27 to rotate backwards, the transmission shaft 27 is connected with the belt pulley 26 through a one-way bearing, the belt pulley 26 cannot rotate when the transmission shaft 27 rotates reversely, the transmission shaft 27 drives the first reciprocating screw rod 13 to rotate reversely, the first reciprocating screw rod 13 drives the first bearing seat 14 to reciprocate, the first bearing seat 14 moves and pushes the baffle plate 11 to move, the baffle plate 11 pushes the sleeve 10 to move and presses the balance weight 25 downwards by the second pressing plate 31 at the bottom of the support rod 12, the support frame 3 between the second pressing plate 31 and the support rod 12 plays a supporting role, the sleeve 10 pushes the first spring 6 on the surface of the second connecting rod 8 to compress, so that the third connecting rod 9 moves along with the sleeve 10, the third connecting rod 9 pushes the first connecting rod 7 to rotate, the first connecting rod 7 drives the clamping plate 5 to rotate on the connecting plate 4, so that the clamping plate 5 clamps the balance weight 25, and the telescopic rod 19 and the second spring 20 on one side of the second pressing plate 31 play a certain damping role, meanwhile, the second pressing plate 31 is supported, looseness is avoided, manual traction cost is reduced, mounting and dismounting are convenient, and the second pressing plate 31 is more firm in pressing.

The above description is only a preferred embodiment of the present invention, and any person skilled in the art may modify the present invention or modify it into an equivalent technical solution by using the technical solution described above. Therefore, any simple modifications or equivalent substitutions made in accordance with the technical solution of the present invention are within the scope of the claims of the present invention.

Claims

1. A tower crane counterweight, comprising a first housing (1), characterized in that: a balance weight (25) is fixedly arranged at the top of the first shell (1), a second shell (17) is fixedly arranged on one side of the first shell (1), and a traction mechanism and a fixing mechanism are arranged on one side of the first shell (1);

the traction mechanism comprises a second reciprocating screw rod (21), the second reciprocating screw rod (21) is arranged on one side of a first shell (1), the second reciprocating screw rod (21) penetrates through the side wall of the first shell (1) and is connected with the side wall of the first shell (1) through a bearing, a supporting base plate (24) is arranged on the other side of the second reciprocating screw rod (21), the second reciprocating screw rod (21) is connected with the supporting base plate (24) through a bearing, the supporting base plate (24) is fixedly connected with the first shell (1), a second bearing seat (22) is sleeved outside the second reciprocating screw rod (21), the second reciprocating screw rod (21) is connected with the second bearing seat (22) through a ball nut pair, a pull rod (23) is fixedly arranged on one side of the second bearing seat (22), the pull rod (23) penetrates through the supporting base plate (24), a hook (29) is fixedly arranged on one side of the pull rod (23), the hook (29) extends into a hook groove (30), and the hook groove (30) is fixedly connected with the balance weight (25);

the fixing mechanism comprises a base (18), the base (18) is fixedly arranged on one side of the first shell (1), a supporting rod (12) is arranged on one side of the base (18), the base (18) is movably connected with the supporting rod (12) through a rotating shaft, a second connecting rod (8) is fixedly arranged on one side of the supporting rod (12), a connecting plate (4) is fixedly connected with one side of the second connecting rod (8), a clamping plate (5) is arranged on one side of the connecting plate (4), the connecting plate (4) is movably connected with the clamping plate (5) through the rotating shaft, a fixing component is fixedly arranged at the bottom of the supporting rod (12), the fixing component comprises a first pressing plate (2), the first pressing plate (2) is fixedly connected with the supporting rod (12), a supporting frame (3) is fixedly connected between the first pressing plate (2) and the supporting rod (12), a telescopic rod (19) is arranged on one side of the first pressing plate (2), first clamp plate (2) and telescopic link (19) are through pivot swing joint, telescopic link (19) other end and first casing (1) lateral wall fixed connection, telescopic link (19) external fixation is equipped with second spring (20).

2. A tower crane counterweight according to claim 1, wherein: the fixed subassembly includes second clamp plate (31), second clamp plate (31) and bracing piece (12) fixed connection, fixedly connected with support frame (3) between second clamp plate (31) and bracing piece (12), second clamp plate (31) one side is equipped with telescopic link (19), second clamp plate (31) and telescopic link (19) are through pivot swing joint, telescopic link (19) other end and first casing (1) lateral wall fixed connection, telescopic link (19) external fixation is equipped with second spring (20).

3. A tower crane counterweight according to claim 1, wherein: the utility model discloses a quick-witted, including second connecting rod (8), sleeve (10) one side is equipped with third connecting rod (9), sleeve (10) and third connecting rod (9) are through pivot swing joint, sleeve (10) top is fixed and is equipped with baffle (11), third connecting rod (9) one side is equipped with head rod (7), third connecting rod (9) and head rod (7) are through pivot swing joint, head rod (7) and splint (5) fixed connection.

4. A tower crane counterweight according to claim 1, wherein: the outside cover of second connecting rod (8) is equipped with first spring (6), first spring (6) both ends respectively with sleeve (10) and connecting plate (4) fixed connection.

5. A tower crane counterweight according to claim 1, wherein: the inside fixed motor (16) that is equipped with of second casing (17), motor (16) output end fixedly connected with transmission shaft (27), transmission shaft (27) one end is equipped with first reciprocal lead screw (13), transmission shaft (27) are connected through one-way bearing with first reciprocal lead screw (13), first reciprocal lead screw (13) extend into first casing (1) inside and pass through the bearing with first casing (1) and be connected, the outside cover of first reciprocal lead screw (13) is equipped with primary shaft bearing (14), first reciprocal lead screw (13) pass through ball nut pair with primary shaft bearing (14) and are connected.

6. A tower crane counterweight according to claim 5, wherein: the supporting device is characterized in that a supporting top plate (15) is fixedly arranged on one side of the first shell (1), the supporting top plate (15) is connected with one end of the first reciprocating screw rod (13) through a bearing, a sliding groove is formed in one side of the supporting top plate (15), and the first bearing seat (14) extends into the sliding groove.

7. A tower crane counterweight according to claim 5, wherein: the outside of transmission shaft (27) and the reciprocal lead screw of second (21) all is equipped with belt pulley (26), transmission shaft (27) are connected through one-way bearing with belt pulley (26), the reciprocal lead screw of second (21) and belt pulley (26) fixed connection, belt pulley (26) outside is equipped with belt (28).