阅读说明：本技术 伸缩臂结构及整平施工装置 (Telescopic boom structure and leveling construction device ) 是由 张超 杨威 田士川 于 2020-04-22 设计创作，主要内容包括：本发明公开了一种伸缩臂结构及整平施工装置。伸缩臂结构包括：中空结构的固定臂；活动臂,可滑移地设置于固定臂内,活动臂上设有滑轮；卷筒,可转动地设置于固定臂内；绳索,缠绕于卷筒上,且绳索的一端固定于卷筒上,另一端绕过滑轮后连接固定臂；驱动机构,设置于固定臂上,卷筒连接于驱动机构的输出端,驱动机构能驱动卷筒转动,以释放或收卷绳索,活动臂能随绳索的收放而相对于固定臂滑移。本发明伸缩臂结构通过将滑轮、卷筒和绳索内置于固定臂中可以减小伸缩臂结构所需的安装尺寸,同时能有效地避免绳索被剐蹭,提高了施工安全系数；通过驱动机构驱动卷筒转动以释放或收卷绳索,使活动臂随绳索的收放而相对于固定臂滑移,结构更简单。(The invention discloses a telescopic arm structure and a leveling construction device. The telescopic arm structure comprises: a fixed arm of hollow structure; the movable arm is arranged in the fixed arm in a sliding manner, and a pulley is arranged on the movable arm; the winding drum is rotatably arranged in the fixed arm; the rope is wound on the winding drum, one end of the rope is fixed on the winding drum, and the other end of the rope is connected with the fixing arm after passing around the pulley; the driving mechanism is arranged on the fixed arm, the winding drum is connected to the output end of the driving mechanism, the driving mechanism can drive the winding drum to rotate so as to release or wind the rope, and the movable arm can slide relative to the fixed arm along with the winding and unwinding of the rope. According to the telescopic arm structure, the pulley, the winding drum and the rope are arranged in the fixed arm in an embedded mode, so that the mounting size required by the telescopic arm structure can be reduced, meanwhile, the rope can be effectively prevented from being scraped and rubbed, and the construction safety factor is improved; the driving mechanism drives the winding drum to rotate so as to release or wind the rope, so that the movable arm slides relative to the fixed arm along with the winding and unwinding of the rope, and the structure is simpler.)

1. A telescopic arm structure, comprising:

the fixing arm (10), the fixing arm (10) is a hollow structure;

the movable arm (20) is arranged in the fixed arm (10) in a sliding manner, and a pulley (21) is arranged on the movable arm (20);

a winding drum (30) rotatably arranged in the fixing arm (10);

the rope (40) is wound on the winding drum (30), one end of the rope (40) is fixed on the winding drum (30), and the other end of the rope (40) rounds the pulley (21) and then is connected with the fixing arm (10); and

the driving mechanism is arranged on the fixed arm (10), the winding drum (30) is connected to the output end of the driving mechanism, the driving mechanism can drive the winding drum (30) to rotate so as to release or wind the rope (40), and the movable arm (20) can slide relative to the fixed arm (10) along with the winding and unwinding of the rope (40).

2. The telescopic arm structure according to claim 1, wherein the movable arm (20) is a hollow structure, a connecting shaft (22) is arranged in the movable arm (20), the connecting shaft (22) is arranged in the pulley (21) in a penetrating manner, and two ends of the connecting shaft (22) are respectively fixedly connected with the side wall of the movable arm (20).

3. The telescopic arm structure according to claim 2, further comprising:

arc block rope cover (60), arc block rope cover (60) wind the circumference setting of pulley (21), just the both ends difference fixed connection of arc block rope cover (60) the lateral wall of digging arm (20) is used for rope (40) take place when the swing will rope (40) keep off back preset position.

4. The telescopic arm structure according to claim 1, further comprising a limiting mechanism for limiting the displacement of the movable arm (20), wherein the limiting mechanism comprises a limiting member (71) and a limiting switch (72) for sensing the limiting member (71), and wherein the limiting member (71) is disposed on one of the movable arm (20) and the fixed arm (10), and the limiting switch (72) is disposed on the other of the movable arm and the fixed arm.

5. The telescopic arm structure according to claim 4, wherein the limit switch (72) is provided at both ends of the inner wall of the fixed arm (10), and the limit piece (71) is provided at the upper part of the movable arm (20).

6. The telescopic arm structure according to claim 1, characterized in that the inner wall of the fixed arm (10) is provided with a plurality of guide wheels (11) along the circumferential direction, said guide wheels (11) abutting the outer wall of the movable arm (20) and being able to roll with respect to the outer wall of the movable arm (20) when the movable arm (20) moves.

7. The telescopic arm structure according to claim 1, further comprising:

the rope blocking assembly (80) is arranged in the fixing arm (10), and the rope blocking assembly (80) is located on one side of the winding drum (30) and used for blocking the rope (40) back to a preset position when the rope (40) swings.

8. The telescopic arm structure according to claim 1, further comprising:

fixing piece (90), set up in fixed arm (10), just the both ends fixed connection of fixing piece (90) the lateral wall of fixed arm (10), rope (40) the other end is walked around pulley (21) back is fixed in on fixing piece (90).

9. A telescopic arm structure according to any of claims 1 to 8, characterized in that said drive mechanism comprises:

a drive motor (51) mounted on the fixed arm (10);

a speed reducer (52) connected to an output end of the drive motor (51); and

reel axle (53), wear to locate reel (30), reel axle (53) connect in the output of speed reducer (52), driving motor (51) can pass through speed reducer (52) drive reel axle (53) rotate, in order to drive reel (30) rotate.

10. A leveling construction device, comprising:

a mobile platform;

the travelling trolley frame is connected to the mobile platform in a sliding manner;

a telescopic arm structure according to any one of claims 1 to 9, the fixed arm (10) of which is connected to the trolley frame; and

a flattening actuator connected to the movable arm (20) of the telescopic arm structure.

Technical Field

The invention relates to the technical field of construction machinery, in particular to a telescopic arm structure and a leveling construction device.

Background

When the construction such as floating, flattening is carried out in the building industry, the actuator for floating and flattening needs to be connected with an automatic traveling crane by using a telescopic arm so as to realize the three-dimensional space motion of the actuator. The telescopic arm is used as a core part, and the performance of the telescopic arm determines the final flattening and floating operation effect.

The telescopic boom is easy to have the situation that the barrels are blocked and operate unsmoothly or the barrels shake when being stretched, the most main solution at present is hydraulic cylinder driving, ball screw driving and external reel steel wire rope driving, but the hydraulic cylinder driving mode has the problems of large part weight and incompact structure caused by the need of adding a hydraulic pump station; the ball screw drive requires high concentricity of each cylinder, and the problems of running blockage and the like are easy to occur; in the external drum steel wire rope driving mode, because the steel wire rope is arranged outside the cylinder, the steel wire rope is easy to scratch and rub against the external environment, and the safety is affected.

Disclosure of Invention

One object of the present invention is to propose a telescopic arm structure which is simple in structure, capable of reducing the required installation dimensions and avoiding rope scrapes.

Another object of the present invention is to provide a leveling construction device including the above telescopic arm structure.

To achieve the purpose, on one hand, the invention adopts the following technical scheme:

a telescopic arm structure comprising:

the fixing arm is of a hollow structure;

the movable arm is arranged in the fixed arm in a sliding manner, and a pulley is arranged on the movable arm;

the winding drum is rotatably arranged in the fixed arm;

the rope is wound on the winding drum, one end of the rope is fixed on the winding drum, and the other end of the rope is connected with the fixing arm after passing around the pulley; and

the driving mechanism is arranged on the fixed arm, the winding drum is connected to the output end of the driving mechanism, the driving mechanism can drive the winding drum to rotate so as to release or wind the rope, and the movable arm can slide relative to the fixed arm along with the winding and unwinding of the rope.

In some embodiments, the movable arm is a hollow structure, a connecting shaft is arranged in the movable arm, the connecting shaft penetrates through the pulley, and two ends of the connecting shaft are respectively and fixedly connected with the side wall of the movable arm.

In some embodiments, the telescopic arm structure further comprises:

the arc-shaped rope blocking cover winds the circumferential direction of the pulley, and the two ends of the arc-shaped rope blocking cover are fixedly connected with the side wall of the movable arm respectively and used for blocking the rope back to a preset position when the rope swings.

In some embodiments, the telescopic arm structure further includes a limiting mechanism for limiting the displacement of the movable arm, the limiting mechanism includes a limiting member and a limiting switch for sensing the limiting member, one of the movable arm and the fixed arm is provided with the limiting member, and the other is provided with the limiting switch.

In some embodiments, the limit switches are disposed at two ends of the inner wall of the fixed arm, and the limit member is disposed at the upper portion of the movable arm.

In some embodiments, the inner wall of the fixed arm is provided with a plurality of guide wheels along the circumferential direction, and the guide wheels are abutted with the outer wall of the movable arm and can roll relative to the outer wall of the movable arm when the movable arm moves.

In some embodiments, the telescopic arm structure further comprises:

and the rope blocking assembly is arranged in the fixed arm and is positioned on one side of the winding drum and used for blocking the rope back to a preset position when the rope swings.

In some embodiments, the telescopic arm structure further comprises:

the fixing piece is arranged in the fixing arm, two ends of the fixing piece are fixedly connected with the side wall of the fixing arm, and the other end of the rope is fixed on the fixing piece after bypassing the pulley.

In some embodiments, the drive mechanism comprises:

the driving motor is arranged on the fixed arm;

the speed reducer is connected to the output end of the driving motor; and

the reel axle wears to locate the reel, the reel hub connection in the output of speed reducer, the drive motor can pass through the speed reducer drive the reel axle rotates to the drive the reel rotates.

On the other hand, the invention adopts the following technical scheme:

a leveling construction device comprising:

a mobile platform;

the travelling trolley frame is connected to the mobile platform in a sliding manner;

in the telescopic arm structure, the fixed arm of the telescopic arm structure is connected to the trolley frame; and

and the leveling actuator is connected to the movable arm of the telescopic arm structure.

The invention has at least the following beneficial effects:

according to the telescopic arm structure, the movable arm is arranged in the fixed arm with the hollow structure in a sliding manner, the pulley is arranged on the movable arm, the winding drum is arranged in the fixed arm in a rotating manner, the rope is wound on the winding drum, one end of the rope is fixed on the winding drum, the other end of the rope is connected with the fixed arm after passing through the pulley, and the pulley, the winding drum and the rope are arranged in the fixed arm in a built-in manner, so that the mounting size required by the telescopic arm structure can be reduced, meanwhile, the rope can be effectively prevented from being scratched and rubbed, and the construction safety factor is improved; the driving mechanism drives the winding drum to rotate so as to release or wind the rope, so that the movable arm slides relative to the fixed arm along with the winding and unwinding of the rope, the contraction of the telescopic arm is realized, and the structure is simpler.

The leveling construction device improves the construction safety factor by using the telescopic arm structure.

Drawings

Fig. 1 is a schematic structural diagram of a telescopic arm structure according to an embodiment of the present invention;

FIG. 2 is a schematic view of the telescopic arm shown in FIG. 1 at another angle;

FIG. 3 is a cross-sectional view of the telescoping arm arrangement of FIG. 2 taken along A-A;

FIG. 4 is a schematic view of a further angle of the telescopic arm arrangement of FIG. 1;

FIG. 5 is a cross-sectional view of the telescoping arm arrangement of FIG. 4 taken along line B-B;

FIG. 6 is a top view of the telescopic arm structure shown in FIG. 4;

fig. 7 is a schematic structural diagram of a fixing arm provided in an embodiment of the present invention;

fig. 8 is a partial structural view of the fixing arm shown in fig. 7;

FIG. 9 is a schematic structural diagram of a movable arm according to an embodiment of the present invention;

FIG. 10 is a cross-sectional view of the moveable arm of FIG. 9 taken along the direction C-C;

FIG. 11 is a cross-sectional view of the moveable arm of FIG. 9 taken along line D-D;

FIG. 12 is a schematic view of the drive mechanism, drum and cord configuration provided by an embodiment of the present invention;

FIG. 13 is a front view of the drive mechanism and spool shown in FIG. 12;

FIG. 14 is a cross-sectional view of the drive mechanism and spool shown in FIG. 13 taken along the direction E-E;

the reference numbers illustrate:

the device comprises a fixed arm 10, a guide wheel 11, a connecting angle seat 12, a U-shaped groove 13, a guide wheel mounting hole 15, a movable arm 20, a pulley 21, a connecting shaft 22, a mounting plate 23, a winding drum 30, a rope 40, a driving motor 51, a speed reducer 52, a winding drum shaft 53, a winding drum bearing seat 54, an arc-shaped rope blocking cover 60, a limiting part 71, a limiting switch 72, a rope blocking assembly 80 and a fixing part 90.

Detailed Description

To facilitate an understanding of the invention, the invention will now be described more fully with reference to the accompanying drawings. Preferred embodiments of the present invention are shown in the drawings. This invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.

The present embodiment provides a telescopic arm structure, as shown in fig. 1 to 6, including a fixed arm 10, a movable arm 20, a reel 30, a rope 40, and a driving mechanism. The fixed arm 10 is a hollow structure, the movable arm 20 is slidably arranged in the fixed arm 10, and the movable arm 20 is provided with a pulley 21; the winding drum 30 is rotatably arranged in the fixing arm 10, the rope 40 is wound on the winding drum 30, one end of the rope 40 is fixed on the winding drum 30, and the other end of the rope is connected with the fixing arm 10 after passing through the pulley 21; the driving mechanism is arranged on the fixed arm 10, the winding drum 30 is connected to the output end of the driving mechanism, the driving mechanism can drive the winding drum 30 to rotate so as to release or wind the rope 40, and the movable arm 20 can slide relative to the fixed arm 10 along with the winding and unwinding of the rope 40.

According to the telescopic arm structure, the movable arm 20 is arranged in the fixed arm 10 with a hollow structure in a sliding manner, the pulley 21 is arranged on the movable arm 20, the winding drum 30 is arranged in the fixed arm 10 in a rotating manner, the rope 40 is wound on the winding drum 30, one end of the rope 40 is fixed on the winding drum 30, the other end of the rope 40 is connected with the fixed arm 10 after passing around the pulley 21, the winding drum 30 and the rope 40 are arranged in the fixed arm 10 in a built-in manner, so that the mounting size required by the telescopic arm structure can be reduced, meanwhile, the rope 40 can be effectively prevented from being scratched, and the construction safety factor is improved; the driving mechanism drives the winding drum 30 to rotate so as to release or wind the rope 40, so that the movable arm 20 slides relative to the fixed arm 10 along with the winding and unwinding of the rope 40, the contraction of the telescopic arm is realized, and the structure is simpler.

Alternatively, the rope 40 may be a steel wire rope, a nylon rope, a hemp rope or a rope made of other materials, preferably a steel wire rope, which has high strength, wear resistance, light dead weight, smooth operation, difficulty in breaking the whole rope suddenly, and reliable operation.

In some embodiments, moveable arm 20 is a hollow structure, which may reduce the weight of moveable arm 20; the connecting shaft 22 is arranged in the movable arm 20, the connecting shaft 22 penetrates through the pulley 21, two ends of the connecting shaft 22 are respectively and fixedly connected with the side wall of the movable arm 20, the pulley 21 is arranged in the movable arm 20 with a hollow structure, the mounting size required by the telescopic arm structure can be reduced, meanwhile, the rope 40 can be effectively prevented from being scratched, and the construction safety factor is improved.

As shown in fig. 1 to 6 and 12, the driving mechanism may include a driving motor 51, a speed reducer 52 and a spool shaft 53, the driving motor 51 is mounted on the fixing arm 10, and the speed reducer 52 is connected to an output end of the driving motor 51; the spool shaft 53 penetrates through the spool 30, the spool shaft 53 is connected to the output end of the speed reducer 52, and the driving motor 51 can drive the spool shaft 53 to rotate through the speed reducer 52 so as to drive the spool 30 to rotate.

Specifically, the driving motor 51 drives the reel 30 to rotate around the central axis of the reel shaft 53 through the speed reducer 52, and the rope 40 can be wound or unwound when the reel 30 rotates by controlling the steering of the driving motor 51 and further controlling the steering of the reel 30; by controlling the rotation speed of the drive motor 51, the extension/contraction speed of the movable arm 20 can be controlled. When the cord 40 is released, the moveable arm 20 moves in a direction to extend the stationary arm 10; when the rope 40 is wound up, the movable arm 20 moves towards the direction of retracting the fixed arm 10, so that the movable arm 20 can stretch and retract when a workpiece or a construction actuator is hoisted, the workpiece or the construction actuator is hoisted in place, and the use is convenient.

As shown in fig. 3, 12 to 14, one end of the spool shaft 53 is connected to the speed reducer 52, and the other end is rotatably connected to the spool bearing block 54 through a bearing; as shown in fig. 7 and 8, the upper end of the fixed arm 10 is provided with two U-shaped grooves 13 oppositely arranged, the two U-shaped grooves 13 are concentric, one U-shaped groove 13 is used for installing a reel bearing seat 54, the other U-shaped groove 13 is used for installing a reducer 52 of a driving mechanism, and the U-shaped groove 13 can play a certain supporting role, so that the driving mechanism and the reel 30 can be stably installed on the fixed arm 10; meanwhile, the U-shaped groove 13 also prevents the driving mechanism and the winding drum 30 from protruding out of the upper end of the fixing arm 10 when the driving mechanism and the winding drum are mounted on the fixing arm 10, so that the upper end of the fixing arm 10 can be conveniently mounted and connected with an external device.

In some embodiments, the telescopic arm structure further includes an arc-shaped rope blocking cover 60 (as shown in fig. 2, 3, 5, 9 and 10), the arc-shaped rope blocking cover 60 is disposed around the circumference of the pulley 21, and both ends of the arc-shaped rope blocking cover 60 are respectively fixedly connected to the side walls of the movable arm 20 for blocking the rope 40 back to the preset position when the rope 40 swings.

In some embodiments, the telescopic arm structure further comprises a limiting mechanism for limiting the displacement of the movable arm 20, the limiting mechanism comprises a limiting member 71 and a limiting switch 72 for sensing the limiting member 71, one of the movable arm 20 and the fixed arm 10 is provided with the limiting member 71, and the other is provided with the limiting switch 72, and whether the movable arm 20 reaches the stroke limit during the telescopic movement can be detected through the limiting mechanism, so as to limit the extending and retracting length of the movable arm 20.

Specifically, in the present embodiment, both ends of the inner wall of the fixed arm 10 are provided with limit switches 72 (as shown in fig. 7), the upper portion of the movable arm 20 is provided with a limit piece 71 (as shown in fig. 9 and 10), the limit switches 72 are in communication connection with the driving mechanism, and when the limit switches 72 sense the limit pieces 71, the limit switches 72 send signals to the driving mechanism, so that the driving mechanism stops the rotation of the winding drum 30 in time, and the movable arm 20 is prevented from exceeding the travel limit and colliding with the winding drum 30 or excessively extending out of the fixed arm 10.

Of course, in other embodiments, a limit-limiting member 71 may be disposed on the inner wall of the fixed arm 10, and a limit switch 72 may be disposed on the upper portion of the movable arm 20, so as to detect whether the movable arm 20 reaches the limit of the travel during the telescopic movement, so as to limit the extension and retraction length of the movable arm 20.

As shown in fig. 3 and 5, in some embodiments, the inner wall of the fixed arm 10 is provided with a plurality of guide wheels 11 along the circumferential direction, the guide wheels 11 abut against the outer wall of the movable arm 20 and can roll relative to the outer wall of the movable arm 20 when the movable arm 20 moves, and the guide wheels 11 can play a role in guiding and reducing friction force, so that the telescopic movement of the movable arm 20 is smoother. In addition, since the guide wheel 11 abuts against the outer wall of the movable arm 20, the displacement of the movable arm 20 in the left-right direction (transverse direction) can be limited, and unsmooth operation caused by left-right swing during the telescopic movement of the movable arm 20 can be avoided.

Specifically, as shown in fig. 8, a plurality of guide wheel mounting holes 15 for mounting the guide wheel 11 are circumferentially formed in the lower end side wall of the fixing arm 10, and the guide wheel mounting holes 15 are designed to facilitate the mounting of the guide wheel 11. Alternatively, the specific number of guide wheel mounting holes 15 can be selected according to practical requirements, and the invention is not limited to this.

In some embodiments, the telescopic arm structure further includes a rope blocking assembly 80, as shown in fig. 1, 6 and 7, the rope blocking assembly 80 is disposed in the fixing arm 10, and the rope blocking assembly 80 is located at one side of the winding drum 30 for blocking the rope 40 back to a preset position when the rope 40 swings.

In some embodiments, the telescopic arm structure further includes a fixing member 90, as shown in fig. 6 and 7, the fixing member 90 is disposed in the fixing arm 10, two ends of the fixing member 90 are fixedly connected to the side wall of the fixing arm 10, and the other end of the rope 40 is fixed to the fixing member 90 after passing through the pulley 21.

This embodiment still provides a flattening construction equipment, and this flattening construction equipment includes moving platform, driving trolley frame, flattening executor and foretell flexible arm structure, and driving trolley frame sliding connection is on moving platform, and the fixed arm 10 of flexible arm structure is connected on driving trolley frame, and the flattening executor is connected on the digging arm 20 of flexible arm structure. Above-mentioned flattening construction equipment has improved construction factor of safety through using above-mentioned flexible arm structure.

Optionally, the mobile platform includes a Y-axis crane beam and an X-axis crane beam, the Y-axis crane beam extends along the Y-axis direction (i.e., the length direction of the Y-axis crane beam is parallel to the Y-axis direction), the X-axis crane beam can be slidably connected to the Y-axis crane beam along the Y-axis direction, and the crane trolley frame can be slidably connected to the X-axis crane beam along the X-axis direction, so as to realize the three-dimensional motion of the leveling actuator and increase the construction range of the leveling operation.

As shown in fig. 1, 2, 5 to 7, a plurality of connection angle seats 12 are circumferentially disposed on an outer wall of an upper end of the fixing arm 10, the connection angle seats 12 are used for connecting the fixing arm 10 with a trolley frame, and the fixing arm 10 and the trolley frame can be more conveniently mounted and connected by designing the connection angle seats 12.

As shown in fig. 1 to 5, 10 and 11, a mounting plate 23 is connected to a lower end of the movable arm 20, the mounting plate 23 is used to mount the leveling actuator on the movable arm 20, and the mounting plate 23 is designed to facilitate the mounting and connection of the movable arm 20 and the leveling actuator.

It should be noted that when one portion is referred to as being "secured to" another portion, it may be directly on the other portion or there may be an intervening portion. When a portion is said to be "connected" to another portion, it may be directly connected to the other portion or intervening portions may be present. The terms "vertical," "horizontal," "left," "right," and the like as used herein are for illustrative purposes only and do not denote a unique embodiment.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used herein in the description of the invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention.

The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.

The above-mentioned embodiments only express several embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention. Therefore, the protection scope of the present patent shall be subject to the appended claims.