CN216303103U

CN216303103U - But 750 x 750mm cross-section's steerable straightness's two rocking arms of lightweight embrace pole

Info

Publication number: CN216303103U
Application number: CN202122831166.6U
Authority: CN
Inventors: 俞磊; 王新元; 梅生杰; 焦刚刚; 张玉庆; 王涛
Original assignee: East China Power Transmissions Engineering Co ltd
Current assignee: East China Power Transmissions Engineering Co ltd
Priority date: 2021-11-18
Filing date: 2021-11-18
Publication date: 2022-04-15
Anticipated expiration: 2031-11-18

Abstract

The utility model provides a lightweight double-rocker holding pole with 750mm cross section and controllable verticality, which relates to the technical field of double-rocker holding pole equipment and comprises: the body frame, the top of body frame fixed mounting respectively has angle stop gear, stably draw and rise mechanism and loose pulley assembly change mechanism, at the in-process of pulling the article, receive the influence of pressure, the fixed plate at device top can the position skew, the connection pad on it is connected in the drive rotates on the mounting disc, L type pin on the connection pad can with spacing annular inner wall contact and carry on spacingly to device top structure when skew angle is too big this moment, prevent that the great unstable condition of doing work that leads to of rotation range from taking place, it is relatively poor with supplementary whole cooperativeness of embracing the pole to have solved current device rocking arm through above-mentioned condition, utilize the same speed rotation of two servo motor, make the shrink rate of steel wire lifting rope equal, make the device can keep the biggest bearing range, increase work efficiency.

Description

But 750 x 750mm cross-section's steerable straightness's two rocking arms of lightweight embrace pole

Technical Field

The utility model relates to the technical field of double-rocker holding rod equipment, in particular to a lightweight double-rocker holding rod with a 750-750 mm cross section and controllable verticality.

Background

The rocker arm is a variable cross-section lattice column assembled by angle steel, the cross section of the middle part of the rocker arm is 1000mm multiplied by 1000mm, and the cross section of the end part of the rocker arm is 400mm multiplied by 400 mm. The main limb adopts L125 x 12 angle steel, the material Q345, the vice limb adopts L50 x 6 angle steel, the material Q235, the rocking arm is 4 pairs in total, two pairs of long 20m rocking arms are arranged to the cross bridge, rated lifting capacity 350KN, the range of 0~75deg becomes width of cloth, is used for lifting the suspension clasp tower stand, arranges two pairs of 15m rocking arms along the bridge to, rated lifting capacity 100KN, the range of 0~85deg becomes width of cloth, is used for lifting the suspension clasp tower crossbeam.

The present two rocking arm of steerable straightness that hangs down holds pole compares its bearing scope of single armed jib higher for the kind of the article of hoisting increases, but the whole cooperativity of present device rocking arm and holding pole is relatively poor, makes the biggest bearing scope that can't reach holding pole of the angle of drawing rising of in-process rocking arm doing work.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the problem that the lifting angle of a rocker arm cannot reach the maximum bearing range of a holding pole due to poor overall cooperativity of the rocker arm and the holding pole in the prior art.

In order to achieve the purpose, the utility model adopts the following technical scheme: a controllable straightness's two rocking arm poles of lightweight of 750X 750mm cross-section includes: the top of the main frame is respectively and fixedly provided with an angle limiting mechanism, a stable pulling mechanism and a pulley component changing mechanism;

the angle limiting mechanism comprises a bearing plate, an installation plate is fixedly installed at the top of the bearing plate, two limiting ring grooves with the same size are formed in the outer wall of the installation plate, a connecting plate is movably inserted into the top of the installation plate, two L-shaped stop levers are fixedly inserted into the outer wall of the connecting plate, the outer wall of each of the two L-shaped stop levers is movably arranged inside the limiting ring groove, and a fixing plate is fixedly installed at the top of the connecting plate;

stable mechanism of lifting that draws includes two recess A, two all fixed inserting is equipped with connecting rod A between the inner wall both sides of recess A every, and the equal movable sleeve of outward appearance wall of two connecting rod A is equipped with fly leaf A, two the rocking arm has all been welded to fly leaf A's mutually backing one side mutually, the equal fixed mounting in outer wall both sides of body frame has the connecting plate, two recess B, two are all seted up at the top of connecting plate every recess B wherein all fixed inserting is equipped with connecting rod B between the inner wall both sides of every, and the equal movable sleeve of outer wall of connecting rod B is equipped with fly leaf B, two the supplementary pole of embracing is all welded to fly leaf B's mutually the back of the body one side.

Preferably, the pulley assembly changing mechanism comprises a subframe, and mounting rings are fixedly mounted on two sides of the inner wall of the subframe.

Preferably, servo motors are fixedly inserted into the inner surface walls of the two mounting rings, and driving rotating wheels are welded at the output ends of the two servo motors.

Preferably, the metal rods A are fixedly inserted into two sides of the inner wall of the subframe, and the outer wall of each of the two metal rods A is movably sleeved with a driven rotating wheel.

Preferably, two rectangular channel A has all been seted up to the mutually opposite side of rocking arm, and the inner wall both sides of every of two rectangular channel A all fixed the inserting be equipped with a set of metal pole B, and two sets of metal pole B's the equal movable sleeve of outer table wall is equipped with accepts pulley A, two the mutually opposite side of supplementary armful of pole has all seted up rectangular channel B, and all fixed the inserting between the inner wall both sides of two rectangular channel B every is equipped with a set of metal pole C, and the equal movable sleeve of outer table wall of two sets of metal pole C is equipped with accepts pulley B, two the inside of initiative runner all twines has the steel wire lifting rope, two the steel wire lifting rope wherein every equal activity winding is in driven runner, accepts pulley A and accepts pulley B's inside.

Preferably, the bottom of the bearing plate is fixedly installed at the top of the main frame, the two grooves A are formed in the top of the fixing plate, and the bottom of the auxiliary frame is fixedly installed at the top of the fixing plate.

Compared with the prior art, the utility model has the advantages and positive effects that,

1. in the utility model, the radius of the corner of the steel wire lifting rope is increased in the process of upward movement of the rocker arm, the whole weight bearing range is increased, the steel wire lifting rope acts on the auxiliary holding rod to synchronously change the angle by utilizing the movable connection of the metal rod B in the movable plate B and the groove B, two servo motors on the auxiliary frame work at the same rotating speed, so that the contraction rates of the steel wire lifting rope are equal, the angle changes of the rocker arm and the auxiliary holding rod are unified, the fixed plate at the top of the device can shift in position to drive the connecting disc connected with the fixed plate to rotate on the mounting disc under the influence of pressure in the process of pulling an object, at the moment, when the shift angle is overlarge, the L-shaped stop lever on the connecting disc can contact with the inner wall of the limiting ring groove and limit the top structure of the device, the phenomenon of unstable working caused by large rotation amplitude is prevented, and the problem of poor overall cooperativity of the rocker arm and the auxiliary holding rod of the existing device is solved through the conditions, the two servo motors are used for rotating at the same speed, so that the contraction speeds of the steel wire lifting ropes are equal, the device can keep the maximum bearing range, and the working efficiency is improved.

2. According to the utility model, the device is easy to generate chemical reaction with oxygen in the air through a metal material to cause corrosion, at the moment, two bearing pulleys A are arranged on each rocker arm, when one of the rocker arms is loosened, the rocker arm can be replaced on the other bearing pulley A, and the distribution positions of the two bearing pulleys A are approximately equal, so that the original precision of the device cannot be changed.

Drawings

FIG. 1 is a perspective view of a lightweight double-rocker arm pole with 750 × 750mm cross-section and controllable verticality according to the present invention;

FIG. 2 is a perspective view of a top view structure of a lightweight double-rocker arm derrick with 750 × 750mm cross section and controllable verticality according to the present invention;

fig. 3 is an enlarged perspective view of a structure at a position a in fig. 2, which is a lightweight double-rocker arm pole with a section of 750 × 750mm and controllable verticality according to the present invention.

Illustration of the drawings: 1. a main frame; 21. a carrier plate; 22. mounting a disc; 23. a limiting ring groove; 24. a connecting disc; 25. an L-shaped stop lever; 26. a fixing plate; 31. a groove A; 32. a movable plate A; 33. a rocker arm; 34. a connecting plate; 35. a movable plate B; 36. an auxiliary holding pole; 37. a groove B; 41. a sub-frame; 42. a mounting ring; 43. a servo motor; 44. a driving runner; 45. a driven runner; 46. a carrying pulley A; 47. lifting a lifting rope by using a steel wire; 48. receiving the pulley B.

Detailed Description

In order that the above objects, features and advantages of the present invention can be more clearly understood, the present invention will be further described with reference to the accompanying drawings and examples. It should be noted that the embodiments and features of the embodiments of the present application may be combined with each other without conflict.

In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention, however, the present invention may be practiced in other ways than those specifically described herein, and thus the present invention is not limited to the specific embodiments of the present disclosure.

Embodiment 1, as shown in fig. 1 to 3, the present invention provides a lightweight double rocker arm pole with a 750 × 750mm cross section and controllable perpendicularity, including: the main frame 1, the top of main frame 1 is fixed mounting respectively has angle stop gear, stably draws and rises mechanism and loose pulley assembly change mechanism.

The specific arrangement and function of the limiting mechanism, the stable lifting mechanism and the pulley assembly changing mechanism are described in detail below.

As shown in fig. 1-2, the angle limiting mechanism includes a supporting plate 21, a mounting plate 22 is fixedly mounted on the top of the supporting plate 21, two limiting ring grooves 23 with equal size are formed in the outer wall of the mounting plate 22, a connecting plate 24 is movably inserted in the top of the mounting plate 22, two L-shaped stop levers 25 are fixedly inserted in the outer wall of the connecting plate 24, the outer wall of each of the two L-shaped stop levers 25 is movably disposed inside the limiting ring groove 23, a fixing plate 26 is fixedly mounted on the top of the connecting plate 24, the stable lifting mechanism includes two grooves a31, a connecting rod a is fixedly inserted between two sides of the inner wall of each of the two grooves a31, a movable plate a32 is movably sleeved on the outer wall of each of the two connecting rods a, a rocker arm 33 is welded on the opposite side of each of the two movable plates a32, connecting plates 34 are fixedly mounted on two sides of the outer wall of the main frame 1, a groove B37 is formed in the top of each of the two connecting plates 34, the connecting rods B are fixedly inserted between two sides of the inner wall of each of the two grooves B37, the movable plates B35 are movably sleeved on the outer walls of the connecting rods B, and the auxiliary holding rods 36 are welded on the opposite sides of the two movable plates B35.

The whole limiting mechanism and the stable lifting mechanism achieve the effects that the whole device is firstly installed on a specified use site, a hanging object hook is installed at the bottom of a steel wire lifting rope 47, the steel wire lifting rope 47 rotates in the process of starting a servo motor 43, the length of the steel wire lifting rope 47 is contracted, in the process, the pressure in the middle of a rocker arm 33 is increased, the rocker arm 33 is subjected to angle change by utilizing the movable connection of a movable plate A32 and a metal rod A in a groove A31, the corner radius of the steel wire lifting rope 47 is increased in the process of upward movement of the rocker arm 33, the whole stressed range is increased, the steel wire lifting rope acts on an auxiliary holding rod 36 to synchronously change the angle by utilizing the movable connection of the movable plate B35 and the metal rod B in the groove B37, two servo motors 43 on an auxiliary frame 41 are at the same rotating speed, so that the contraction speed of the steel wire lifting rope 47 is equal, and the angle changes of the rocker arm 33 and the auxiliary holding rod 36 are unified, in the process of pulling the object, receive the influence of pressure, the fixed plate 26 at device top can take place the offset, drive connection pad 24 that connects it and rotate on mounting disc 22, L type pin 25 on connection pad 24 can contact with spacing annular 23 inner wall and carry on spacingly to the device top structure when skew angle is too big this moment, prevent that the rotation amplitude is great to lead to doing the unstable condition emergence of doing work, it is relatively poor to have solved current device rocking arm 33 and supplementary pole 36's whole cooperativity through the above-mentioned condition, utilize the same speed rotation of two servo motor 43, make the shrink rate of steel wire lifting rope 47 equal, make the device can keep the biggest bearing range, increase work efficiency.

As shown in fig. 1-3, the pulley assembly changing mechanism includes a sub-frame 41, wherein mounting rings 42 are fixedly mounted on both sides of the inner wall of the sub-frame 41, servo motors 43 are fixedly inserted into the inner surface walls of the two mounting rings 42, driving wheels 44 are welded to the output ends of the two servo motors 43, metal rods a are fixedly inserted into both sides of the inner wall of the sub-frame 41, driven wheels 45 are movably sleeved on the outer surface walls of the two metal rods a, rectangular grooves a are formed in opposite sides of the two rocker arms 33, a set of metal rods B is fixedly inserted into both sides of the inner wall of each of the two rectangular grooves a, receiving pulleys a46 are movably sleeved on the outer surface walls of the two sets of metal rods B, rectangular grooves B are formed in opposite sides of the two auxiliary wrapping rods 36, a set of metal rods C is fixedly inserted between both sides of the inner wall of each of the two rectangular grooves B, and receiving pulleys B48 are movably sleeved on the outer surface walls of the two sets of metal rods C, the inside of two initiative runners 44 all twines has steel wire rope 47, and two steel wire rope 47 wherein each activity winding is in the inside of driven runner 45, accepting pulley A46 and accepting pulley B48, and the bottom fixed mounting of loading board 21 is at the top of body frame 1, and two recess A31 are all seted up at the top of fixed plate 26, and the bottom fixed mounting of subframe 41 is at the top of fixed plate 26.

The whole pulley component changing mechanism achieves the effect that when the steel wire lifting rope 47 is manufactured on the device for a long time, the bearing pulley A46 on the rocker arm 33 is stressed most highly, corrosion is caused due to the fact that chemical reaction is easy to occur between metal materials and oxygen in the air, at the moment, two bearing pulleys A46 are installed on each rocker arm 33, when one of the rocker arms is loosened, the rocker arm can be replaced on the other bearing pulley A46, the distribution positions of the two bearing pulleys A46 are approximately equal, the original precision of the device cannot be changed, the step of dismounting and welding is simplified through the conditions, the device is large in size, the whole is high after the device is installed, and further danger brought during operation is reduced.

The above description is only a preferred embodiment of the present invention, and not intended to limit the present invention in other forms, and any person skilled in the art may apply the above modifications or changes to the equivalent embodiments with equivalent changes, without departing from the technical spirit of the present invention, and any simple modification, equivalent change and change made to the above embodiments according to the technical spirit of the present invention still belong to the protection scope of the technical spirit of the present invention.

Claims

1. The utility model provides a steerable straightness's two rocking arm armful poles that hang down of 750 x 750mm cross-section, its characterized in that: the method comprises the following steps: the device comprises a main frame (1), wherein an angle limiting mechanism, a stable pulling mechanism and a pulley assembly changing mechanism are fixedly mounted at the top of the main frame (1) respectively;

the angle limiting mechanism comprises a bearing plate (21), a mounting disc (22) is fixedly mounted at the top of the bearing plate (21), two limiting ring grooves (23) with the same size are formed in the outer wall of the mounting disc (22), a connecting disc (24) is movably inserted into the top of the mounting disc (22), two L-shaped stop levers (25) are fixedly inserted into the outer wall of the connecting disc (24), the outer wall of each of the two L-shaped stop levers (25) is movably arranged in the limiting ring grooves (23), and a fixing plate (26) is fixedly mounted at the top of the connecting disc (24);

stable mechanism that rises includes two recess A (31), two all fixed inserting is equipped with connecting rod A between the inner wall both sides of recess A (31) every, and the equal movable sleeve of outer wall of two connecting rod A is equipped with fly leaf A (32), two rocking arm (33) have all been welded to back of the body one side of fly leaf A (32), the equal fixed mounting in outer wall both sides of body frame (1) has connecting plate (34), two recess B (37), two are all seted up at the top of connecting plate (34) every recess B (37) wherein all fixed inserting is equipped with connecting rod B between the inner wall both sides of every, and connecting rod B's the equal movable sleeve of outer wall is equipped with fly leaf B (35), two supplementary armful pole (36) have all been welded to back of the body one side of fly leaf B (35).

2. The lightweight double-rocker arm derrick with 750 x 750mm cross section and controllable verticality as claimed in claim 1, is characterized in that: the pulley component changing mechanism comprises a subframe (41), and mounting rings (42) are fixedly mounted on two sides of the inner wall of the subframe (41).

3. The lightweight double-rocker arm derrick with 750 x 750mm cross section and controllable verticality as claimed in claim 2, is characterized in that: the inner surface wall of the two mounting rings (42) is fixedly inserted with servo motors (43), and the output ends of the two servo motors (43) are welded with driving rotating wheels (44).

4. The lightweight double-rocker arm derrick with 750 x 750mm cross section and controllable verticality as claimed in claim 2, is characterized in that: the inner wall both sides of subframe (41) all are fixed to be inserted and are equipped with metal pole A, and the outward appearance wall of two metal pole A each all activity cover is equipped with driven runner (45).

5. The lightweight double-rocker arm derrick with 750 x 750mm cross section and controllable verticality as claimed in claim 3, is characterized in that: two rectangular channel A has all been seted up to the mutually opposite one side of rocking arm (33), and the inner wall both sides of every of two rectangular channel A are all fixed to be inserted and are equipped with a set of metal pole B, and two sets of the equal movable sleeve of table wall of metal pole B is equipped with accepts pulley A (46), two the rectangular channel B has all been seted up to the mutually opposite one side of supplementary armful pole (36), and all fixed the inserting between the inner wall both sides of two rectangular channel B are equipped with a set of metal pole C, and the equal movable sleeve of table wall of two sets of metal pole C is equipped with accepts pulley B (48), two the inside of initiative runner (44) all twines steel wire lifting rope (47), two steel wire lifting rope (47) wherein every equal movable winding is in the inside of driven runner (45), accepts pulley A (46) and accepts pulley B (48).

6. The lightweight double-rocker arm derrick with 750 x 750mm cross section and controllable verticality as claimed in claim 2, is characterized in that: the bottom fixed mounting of loading board (21) is at the top of body frame (1), two recess A (31) are all seted up at the top of fixed plate (26), the bottom fixed mounting of subframe (41) is at the top of fixed plate (26).