Cantilever crane conveying device

Abstract

The utility model relates to the technical field of arm support conveying, and particularly discloses an arm support conveying device which comprises a plurality of conveying units, each conveying unit comprises a supporting frame, a roller shaft is rotationally arranged on the supporting frame, a driving mechanism is arranged on the supporting frame, the driving mechanism is used for driving the roller shaft to rotate, and the supporting frame is arranged on an elastic recovery mechanism. The elastic recovery mechanism comprises an elastic assembly and a guide limiting assembly; the elastic assembly is arranged on the bottom face of the supporting frame. The two sides of the supporting frame are arranged on the guide limiting assemblies. Compared with the prior art, through the action of the elastic assembly, the roller shafts of all the conveying units can make contact with the arm frame when the steps or the protruding parts of the arm frame pass through the roller shafts, conveying of the arm frame is guaranteed, damage to the arm frame and noise are reduced, and after the steps or the protruding parts of the arm frame pass through the roller shafts of the conveying units, the conveying efficiency of the arm frame is improved. The conveying unit supporting frame can return to the position, and conveying of a next arm frame is facilitated.

Description

Technical Field

[0001] The utility model relates to the technical field of boom conveying, and specifically discloses a boom conveying device. Background Art

[0002] The crane jib, commonly known as the boom or jib, is a bidirectionally bent metal structure that supports the lifting rope, the fetching device or the luffing trolley. Its main function is to lift and transport heavy objects through telescopic, lifting, rotating and other actions. It has the characteristics of wide coverage, adjustable lifting height and span.

[0003] When the boom needs to be transferred during production and manufacturing, it is transported by a conveyor roller. The conveyor roller is a mechanical conveying device composed of several smooth rollers, which can transport various items in horizontal, inclined, vertical or mixed directions. This equipment is mainly composed of several rollers, and the items can roll between the rollers to achieve transportation.

[0004] However, in the prior art, the arm is mostly set in a stepped shape. When the arm itself is a plane or the step is small, the above-mentioned conveying roller can meet the normal transfer. However, when the arm itself is a relatively large step or has a protrusion, the flow to the step position or the protrusion will cause the entire conveying system to be stuck, resulting in some conveying rollers unable to contact the arm, requiring manual pushing to complete the transfer, and when the step of the arm crosses over a roller, it will suddenly fall and hit the next roller, thereby damaging the arm and generating severe noise, affecting product quality and production environment. Utility Model Content

[0005] In view of the above-mentioned deficiencies in the prior art, the utility model provides an arm conveying device to solve the problem that when the arm itself is in the shape of a relatively large step or has a protrusion, the flow to the step position or the protrusion will cause the entire conveying system to be stuck, resulting in some conveying rollers being unable to contact the arm, and manual pushing is required to complete the transfer. Moreover, when the step of the arm crosses over a roller, it will suddenly fall and hit the next roller, thereby damaging the arm and generating severe noise, affecting product quality and the production environment.

[0006] To achieve the above purpose, the technical solution of the utility model is:

[0007] A boom conveying device includes a plurality of conveying units, each of which includes a support frame, a roller shaft is rotatably arranged on the support frame, a driving mechanism is arranged on the support frame, the driving mechanism is used to drive the roller shaft to rotate, and the support frame is arranged on an elastic recovery mechanism; the elastic recovery mechanism includes an elastic component and a guide limit component; the elastic component is arranged on the bottom surface of the support frame; and the two sides of the support frame are arranged on the guide limit component. Through the action of the elastic component, when the step or protrusion of the boom passes through the roller shaft, the roller shaft of each conveying unit can contact the boom, thereby ensuring the conveying of the boom, reducing the damage to the boom and the generation of noise, and after the step or protrusion of the boom passes through the roller shaft of the conveying unit, the conveying unit support frame can return to its position, facilitating the conveying of the next boom. The setting of the guide limit component ensures the stability of the contraction and recovery action of the support frame driven by the elastic component, thereby ensuring the stability of the boom conveying.

[0008] Preferably, the support frame is arranged in a concave shape as a whole; the elastic component includes a plurality of springs; one end of the spring is fixedly connected to the bottom surface of the support frame, and the other end is fixedly arranged on the guide limit assembly. The concave-shaped support frame is convenient for the installation of the roller shaft, and is convenient for the arrangement of the spring and the guide limit assembly.

[0009] Preferably, the spring is a conical helical spring, and the small diameter end of the spring is fixedly connected to the support frame, so that the force on the spring changes linearly when the support frame is pressed downward.

[0010] Preferably, the guide limit assembly includes a base; pillars are fixedly arranged on the top surfaces of both ends of the base; a spring is arranged on the base; a slide groove is arranged on the pillar; the support frame is slidably arranged in the slide groove; and a reinforcing rib is fixedly arranged between the base and the pillar. The setting of the slide groove limits the movement range of the support frame and ensures the stable movement of the support frame. The setting of the reinforcing rib ensures that the pillar is firmly arranged.

[0011] Preferably, a mounting groove is provided on the base, and the large diameter end of the spring is arranged in the mounting groove, thereby ensuring the stability of the spring arrangement.

[0012] Preferably, the support frame includes a flat plate; vertical poles are fixedly arranged on the top surfaces of both ends of the flat plate; bearing grooves are arranged on the vertical poles; the roller is arranged in the bearing grooves through roller bearings; a cylinder is arranged on the outer wall of the vertical pole; a roller is arranged on the cylinder through a roller bearing; and the roller is arranged in the slide groove of the pillar. The arrangement of the roller reduces the friction between the support frame and the pillar.

[0013] Preferably, the outer diameter of the roller is smaller than the width of the slide groove of the pillar, so that when the roller shaft is subjected to lateral force, the roller contacts the inner wall of the slide groove of the pillar to roll up and down.

[0014] Preferably, the driving mechanism comprises a motor; the motor is fixedly arranged on the support frame; the motor is connected to the roller shaft through a belt assembly.

[0015] Preferably, the belt assembly includes a driving pulley arranged at the output end of the motor; the driving pulley is connected to a driven pulley via a belt; and the driven pulley is arranged on the roller neck of the roller shaft.

[0016] The beneficial effects of the utility model are as follows: through the action of the elastic component, when the step or protrusion of the arm passes through the roller, the roller of each conveying unit can contact the arm, thereby ensuring the conveying of the arm, reducing the damage to the arm and the generation of noise, and after the step or protrusion of the arm passes through the roller of the conveying unit, the conveying unit support frame can return to its position, facilitating the conveying of the next arm. The setting of the guide limiter component ensures the stability of the contraction and return action of the support frame driven by the elastic component, thereby ensuring the stability of the arm conveying. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solutions in the embodiments of the utility model or the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, for ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0018] Figure 1 It is a structural schematic diagram of the utility model;

[0019] Figure 2 It is a schematic diagram of a partially cutaway structure of the utility model;

[0020] Figure 3 It is a structural schematic diagram of the base and the support of the utility model;

[0021] Figure 4 This is a schematic diagram of the structure of the support frame, motor and roller of the utility model;

[0022] Figure 5 It is a structural schematic diagram of the roller shaft and the driven pulley of the utility model;

[0023] Figure 6 This is a schematic diagram of the use status of the utility model. Figure 1 ;

[0024] Figure 7 This is a schematic diagram of the use status of the utility model. Figure 2 .

[0025] Description of reference numerals:

[0026] 1-base, 2-pillar, 3-arm, 4-support frame, 5-spring, 6-roller, 7-roller bearing, 8-roller, 9-roller bearing, 10-motor, 11-belt, 12-driving pulley, 13-driven pulley;

[0027] 101-installation groove, 102-reinforcement rib; 401-vertical pole, 402-bearing groove. DETAILED DESCRIPTION

[0028] In order to enable those skilled in the art to better understand the technical solutions in the present invention, the following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work should fall within the scope of protection of the present invention.

[0029] like Figure 1-5 As shown, an arm conveying device includes a plurality of conveying units, each of which includes a support frame 4, on which a roller shaft 6 is rotatably arranged, and a driving mechanism is arranged on the support frame 4, and the driving mechanism is used to drive the roller shaft 6 to rotate, and the driving mechanism includes a motor 10; the motor 10 is fixedly arranged on the support frame 4; the motor 10 is connected to the roller shaft 6 through a belt assembly. The belt assembly includes a driving pulley 12 arranged at the output end of the motor 10; the driving pulley 12 is connected to a driven pulley 13 through a belt 11; the driven pulley 13 is arranged on the roller neck of the roller shaft 6. The support frame 4 is arranged on an elastic return mechanism; the elastic return mechanism includes an elastic component and a guide limit component; the elastic component is arranged on the bottom surface of the support frame 4; and both sides of the support frame 4 are arranged on the guide limit components. Through the action of the elastic component, when the step or protrusion of the arm 3 passes through the roller 6, the roller 6 of each conveying unit can contact the arm 3, ensuring the conveying of the arm 3, reducing the damage to the arm 3 and the generation of noise, and after the step or protrusion of the arm 3 passes through the roller 6 of the conveying unit, the conveying unit support frame 4 can return to the position, facilitating the conveying of the next arm 3. The setting of the guide limiter component ensures the stability of the contraction and recovery action of the support frame 4 driven by the elastic component, and ensures the stability of the conveying of the arm 3.

[0030] In the above configuration, the support frame 4 is configured in a concave shape as a whole; the elastic component includes three springs 5, and the three springs 5 ​​are arranged at intervals; one end of the spring 5 is fixedly connected to the bottom surface of the support frame 4, and the other end is fixedly set on the guide limit assembly. The support frame 4 configured in a concave shape is convenient for the installation of the roller 6, and is convenient for the setting of the spring 5 and the guide limit assembly. The spring 5 is a conical helical spring; the small diameter end of the spring 5 is fixedly connected to the support frame 4, so that the force exerted on the spring 5 changes linearly when the support frame 4 is squeezed downward. In other alternative embodiments, the three springs 5 ​​in the elastic component are replaced by a rubber pad.

[0031] The guide limit assembly includes a base 1; pillars 2 are fixedly arranged on the top surfaces of both ends of the base 1; a spring 5 is arranged on the base 1; a slide groove is arranged on the pillar 2; a support frame 4 is slidably arranged in the slide groove; and a reinforcing rib 102 is fixedly arranged between the base 1 and the pillar 2. The setting of the slide groove limits the movement range of the support frame 4 and ensures the stable movement of the support frame 4. The setting of the reinforcing rib 102 ensures that the pillar 2 is firmly arranged. A mounting groove 101 is arranged on the base 1; the large diameter end of the spring 5 is arranged in the mounting groove 101. The stability of the setting of the spring 5 is ensured. The support frame 4 includes a flat plate; a vertical rod 401 is fixedly arranged on the top surfaces of both ends of the flat plate; a bearing groove 402 is arranged on the vertical rod 401; a roller shaft 6 is arranged in the bearing groove 402 through a roller shaft bearing 7; a cylinder is arranged on the outer wall of the vertical rod 401; a roller 8 is arranged on the cylinder through a roller bearing 9; and the roller 8 is arranged in the slide groove of the pillar 2. The setting of the roller 8 reduces the friction between the support frame 4 and the pillar 2. The outer diameter of the roller 8 is smaller than the width of the slide groove of the pillar 2, so that when the roller shaft 6 is subjected to lateral force, the roller 8 contacts the inner wall of the slide groove of the pillar 2 and rolls up and down.

[0032] like Figure 6-7 As shown, when the step or protrusion of the arm 3 passes through the roller 6, the support frame 4 can compress the spring 5 to contract, ensuring that the roller 6 of other conveying units can contact the arm 3, ensuring the conveying of the arm 3, avoiding damage to the arm 3 and the generation of noise, and after the step or protrusion of the arm 3 passes through the roller 6 of the conveying unit, the support frame 4 of the conveying unit can return to its position under the elastic force of the spring 5, facilitating the conveyance of the next arm 3.

[0033] Although the utility model is described in detail by referring to the accompanying drawings and in combination with the preferred embodiments, the utility model is not limited thereto. Without departing from the spirit and essence of the utility model, a person of ordinary skill in the art may make various equivalent modifications or substitutions to the embodiments of the utility model, and these modifications or substitutions shall be within the scope of the utility model / any person of ordinary skill in the art who is familiar with the technical field can easily think of changes or substitutions within the technical scope disclosed in the utility model, and they shall be within the scope of protection of the utility model. Therefore, the scope of protection of the utility model shall be based on the scope of protection of the claims.

Claims

1. An arm conveying device, comprising a plurality of conveying units, each conveying unit comprising a support frame (4), a roller shaft (6) being rotatably arranged on the support frame (4), a driving mechanism being arranged on the support frame (4), the driving mechanism being used to drive the roller shaft (6) to rotate, characterized in that: The support frame (4) is arranged on the elastic return mechanism; the elastic return mechanism comprises an elastic component and a guide limit component; the elastic component is arranged on the bottom surface of the support frame (4); and both sides of the support frame (4) are arranged on the guide limit component.

2. The boom conveying device according to claim 1, characterized in that: The support frame (4) is arranged in a concave shape as a whole; the elastic component comprises a plurality of springs (5); one end of the spring (5) is fixedly connected to the bottom surface of the support frame (4), and the other end is fixedly arranged on the guide limit assembly.

3. The boom conveying device according to claim 2, characterized in that: The spring (5) is a conical helical spring; the small diameter end of the spring (5) is fixedly connected to the support frame (4).

4. The boom conveying device according to claim 3, characterized in that: The guide limit assembly comprises a base (1); pillars (2) are fixedly arranged on the top surfaces of both ends of the base (1); a spring (5) is arranged on the base (1); a slide groove is arranged on the pillar (2); a support frame (4) is slidably arranged in the slide groove; and a reinforcing rib (102) is fixedly arranged between the base (1) and the pillar (2).

5. The boom conveying device according to claim 4, characterized in that: A mounting groove (101) is provided on the base (1); the large diameter end of the spring (5) is arranged in the mounting groove (101).

6. The boom conveying device according to claim 5, characterized in that: The support frame (4) comprises a flat plate; vertical poles (401) are fixedly arranged on the top surfaces of both ends of the flat plate; a bearing groove (402) is arranged on the vertical pole (401); a roller (6) is arranged in the bearing groove (402) via a roller bearing (7); a cylinder is arranged on the outer wall of the vertical pole (401); a roller (8) is arranged on the cylinder via a roller bearing (9); and the roller (8) is arranged in a slide groove of the pillar (2).

7. The boom conveying device according to claim 6, characterized in that: The outer diameter of the roller (8) is smaller than the width of the slide groove of the support (2).

8. The boom conveying device according to claim 1, characterized in that: The driving mechanism comprises a motor (10); the motor (10) is fixedly arranged on the support frame (4); and the motor (10) is connected to the roller shaft (6) via a belt assembly.

9. The boom conveying device according to claim 8, characterized in that: The belt assembly comprises a driving pulley (12) arranged at the output end of the motor (10); the driving pulley (12) is connected to a driven pulley (13) via a belt (11); and the driven pulley (13) is arranged on the roller neck of the roller shaft (6).

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