Suspender structure of gantry crane

Abstract

The utility model relates to a suspender structure of a gantry crane, which comprises two symmetrically arranged supporting legs, and a suspender structure is arranged between the two supporting legs; the suspender structure comprises a first suspender and a second suspender, and the right end of the second suspender extends into the first suspender; a telescopic structure for displacing the second lifting rod is arranged in the first lifting rod and comprises a servo motor fixedly mounted in the first lifting rod and an adjusting lead screw which is fixedly mounted on an output shaft of the servo motor through a coupler and is in threaded connection with the second lifting rod. According to the suspender structure of the gantry crane, by starting the telescopic structure, the second suspender is moved, so that the distance of the suspender structure can be adjusted, operation is convenient, the adjusting efficiency can be improved, the advantages of being high in practicability, convenient to adjust and the like are achieved, and the problems that an existing suspender is manually adjusted during stretching and retracting, operation is troublesome, and the practicability is high are solved. And the use efficiency of the light gantry crane is easily influenced.

Description

Technical Field

[0001] The utility model relates to the technical field of gantry cranes, in particular to a suspension rod structure of a gantry crane. Background Art

[0002] Gantry crane is also called portal crane. Gantry crane is a bridge crane with a horizontal bridge frame set on two legs to form a portal shape. A horizontal boom is set between the two legs. The lifting equipment starts a vertical or vertical and horizontal working stroke after picking up materials, unloads after reaching the destination, and then travels empty to the material picking location to complete a working cycle. Gantry cranes are divided into light mobile gantry cranes, also known as simple gantry cranes, light gantry cranes, light mobile gantry cranes, and light mobile gantry cranes.

[0003] Due to the good practicality of gantry cranes, they are widely used in various industries. For example, light gantry cranes are used in pet grooming tables or operating tables. Install the light gantry crane on the pet grooming table or operating table, and then install a sling on the boom of the light gantry crane to pull the pet. In order to improve the practicality of existing light gantry cranes, the boom is usually set to a telescopic state to facilitate better lifting. However, the existing boom is manually adjusted when it is telescopic. This method is not only cumbersome to operate, but also requires manual adjustment back and forth according to different needs, resulting in a low adjustment efficiency of the boom, which seriously affects the practicality of the light gantry crane and cannot meet the use requirements. Therefore, a gantry crane boom structure is proposed to solve the above-mentioned problems. Utility Model Content

[0004] In view of the deficiencies in the prior art, the utility model provides a boom structure for a gantry crane, which has the advantages of strong practicability and easy adjustment, and solves the problem that the existing boom needs manual adjustment when extending or retracting, which is not only cumbersome to operate but also easily affects the use efficiency of the light gantry crane.

[0005] To achieve the above object, the utility model provides the following technical solution: a gantry crane boom structure comprises two symmetrically arranged legs, a boom structure is arranged between the two legs;

[0006] The boom structure comprises a first boom and a second boom, wherein the right end of the second boom extends into the interior of the first boom;

[0007] A telescopic structure for displacing the second suspension rod is arranged inside the first suspension rod, and the telescopic structure includes a servo motor fixedly installed inside the first suspension rod and an adjusting screw fixedly installed on the output shaft of the servo motor through a coupling and threadedly connected to the second suspension rod.

[0008] Furthermore, a mounting block fixed to the opposite side of the two legs is welded to the separated ends of the first suspension rod and the second suspension rod, and mounting bolts for connecting the support rods are installed inside the two legs.

[0009] Furthermore, a limit seat is fixedly installed inside the first suspension rod, and the adjusting screw passes through the inside of the limit seat and is connected to the inside of the limit seat through a bearing.

[0010] Furthermore, positioning holes for fixing are provided inside the first suspension rod and the second suspension rod, and positioning rods are inserted into the positioning holes.

[0011] Furthermore, a guide assembly for limiting position is arranged on the outer wall of the second suspension rod, and the guide assembly includes a mounting frame fixedly mounted on the outer wall of the second suspension rod and a pulley rotatably mounted on the inner side of the mounting frame.

[0012] Furthermore, a slide groove matched with the pulley is provided inside the first suspension rod, and the pulley extends into the inside of the slide groove.

[0013] Furthermore, support arms for enhancing stability are welded between the two legs and the first suspension rod and the second suspension rod.

[0014] Furthermore, the bottoms of the first suspension rod and the second suspension rod are both provided with suspension rope installation holes for installing suspension ropes, and the outside of the first suspension rod is detachably provided with an inspection plate.

[0015] Compared with the prior art, the utility model provides a gantry crane boom structure, which has the following beneficial effects:

[0016] 1. The boom structure of the gantry crane can adjust the spacing of the boom structure by starting the telescopic structure to move the second boom. This is not only convenient to operate, but also improves the adjustment efficiency, thereby achieving the advantages of strong practicality and easy adjustment, etc., and solves the problem of manual adjustment when the existing boom is extended and retracted, which is not only cumbersome to operate, but also easily affects the use efficiency of the light gantry crane.

[0017] 2. The boom structure of the gantry crane fixes the second boom by inserting the positioning rod into the positioning hole, thereby strengthening the connectivity of the boom structure. Through the setting of the pulley and the slide groove, the second boom can not only move stably but also move out of the first boom better, thereby improving the adjustment effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a three-dimensional diagram of the structure of the utility model;

[0019] Figure 2 This is a cross-sectional view of the structure of the utility model;

[0020] Figure 3 For this utility model Figure 2 A is a schematic diagram of the enlarged structure shown;

[0021] Figure 4 It is a structural schematic diagram of the hanging rope installation hole of the utility model.

[0022] In the figure: 1. outrigger; 2. first suspension rod; 3. second suspension rod; 4. mounting block; 5. servo motor; 6. adjusting screw; 7. limit seat; 8. positioning hole; 9. positioning rod; 10. mounting bolt; 11. inspection plate; 12. suspension rope mounting hole; 13. support arm; 14. mounting frame; 15. pulley; 16. slide groove. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0024] Embodiment 1:

[0025] See also Figure 1-4 The boom structure of the gantry crane includes two symmetrically arranged legs 1, and a boom structure is arranged between the two legs 1; the boom structure includes a first boom 2 and a second boom 3, and the right end of the second boom 3 extends to the inside of the first boom 2;

[0026] Among them, the first suspension rod 2 and the second suspension rod 3 are both welded with a mounting block 4 fixed to the opposite side of the two legs 1 at one end, and the inside of the two legs 1 is installed with a mounting bolt 10 for connecting the support rods.

[0027] In this embodiment, a telescopic structure for displacing the second hanger 3 is provided inside the first hanger 2, and the telescopic structure includes a servo motor 5 fixedly installed inside the first hanger 2 and an adjusting screw 6 fixedly installed on the output shaft of the servo motor 5 through a coupling and threadedly connected to the second hanger 3.

[0028] A limit seat 7 is fixedly installed inside the first suspension rod 2, and the adjusting screw 6 passes through the inside of the limit seat 7 and is connected to the inside of the limit seat 7 through a bearing.

[0029] It should be noted that the first suspension rod 2 and the second suspension rod 3 are both provided with positioning holes 8 for fixing, and positioning rods 9 are inserted into the positioning holes 8. The positioning hole 8 in the first suspension rod 2 is located at the leftmost end. There are several positioning holes 8 on the second suspension rod 3, and the positioning holes 8 are evenly distributed. By inserting the positioning rods 9 into the positioning holes 8, the second suspension rod 3 is fixed, and the connectivity of the suspension rod structure is strengthened.

[0030] When this embodiment is in use, the servo motor 5 is started to drive the adjusting screw 6 to rotate. Since the second suspension rod 3 is threadedly connected with the adjusting screw 6, the second suspension rod 3 is moved to adjust the spacing of the suspension rod structure, which effectively solves the problem of manual adjustment of the existing suspension rod when it is extended or retracted. This method is not only cumbersome to operate, but also easily affects the efficiency of the use of the light gantry crane.

[0031] In this embodiment, a support arm 13 for enhancing stability is welded between the two legs 1 and the first suspension rod 2 and the second suspension rod 3. The bottoms of the first suspension rod 2 and the second suspension rod 3 are provided with a suspension rope installation hole 12 for installing a suspension rope, and an inspection plate 11 is detachably installed on the outside of the first suspension rod 2.

[0032] Embodiment 2:

[0033] See also Figure 3 On the basis of the first embodiment, a guide assembly for limiting is provided on the outer wall of the second suspension rod 3, and the guide assembly includes a mounting frame 14 fixedly mounted on the outer wall of the second suspension rod 3 and a pulley 15 rotatably mounted on the inner side of the mounting frame 14.

[0034] A slide groove 16 matched with the pulley 15 is provided inside the first suspension rod 2 , and the pulley 15 extends into the inside of the slide groove 16 .

[0035] In this embodiment, there are two guide assemblies, and the two guide assemblies are symmetrically arranged.

[0036] It should be noted that the length of the slide slot 16 is smaller than the moving distance of the second suspension rod 3. The length of the adjusting screw 6 is adapted to the moving distance of the second suspension rod 3.

[0037] By adopting the above technical solution, it is achieved that the second suspension rod not only moves stably, but also can be better moved out of the first suspension rod through the setting of the pulley and the slide groove, thereby improving the adjustment effect.

[0038] The working principle of the above embodiment is:

[0039] When in use, the servo motor 5 is started to drive the adjusting screw 6 to rotate. Since the second suspension rod 3 is threadedly connected to the adjusting screw 6, the second suspension rod 3 moves to adjust the spacing of the suspension rod structure. After the suspension rod structure is adjusted, the positioning rod 9 is inserted into the positioning hole 8 to fix the second suspension rod 3 and strengthen the connectivity of the suspension rod structure.

[0040] The electrical components appearing in the article are all electrically connected to the main controller and the power supply. The main controller can be a conventional known device for control such as a computer, and the existing public power connection technology is not described in detail in the article.

[0041] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprise a ..." do not exclude the existence of other identical elements in the process, method, article or device including the elements.

[0042] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A gantry crane boom structure, comprising two symmetrically arranged legs (1), characterized in that: A suspension rod structure is provided between the two legs (1); The suspension rod structure comprises a first suspension rod (2) and a second suspension rod (3), wherein the right end of the second suspension rod (3) extends into the interior of the first suspension rod (2); A telescopic structure for displacing the second suspension rod (3) is provided inside the first suspension rod (2), the telescopic structure comprising a servo motor (5) fixedly mounted inside the first suspension rod (2) and an adjusting screw (6) fixedly mounted on the output shaft of the servo motor (5) via a coupling and threadedly connected to the second suspension rod (3).

2. The gantry crane boom structure according to claim 1, characterized in that: A mounting block (4) fixed to the opposite side of the two legs (1) is welded to the separated ends of the first suspension rod (2) and the second suspension rod (3), and mounting bolts (10) for connecting the support rods are installed inside the two legs (1).

3. The gantry crane boom structure according to claim 1, characterized in that: A limit seat (7) is fixedly mounted inside the first suspension rod (2), and the adjusting screw (6) passes through the inside of the limit seat (7) and is connected to the inside of the limit seat (7) via a bearing.

4. The gantry crane suspension rod structure according to claim 1, characterized in that: Positioning holes (8) for fixing are provided inside the first suspension rod (2) and the second suspension rod (3), and positioning rods (9) are inserted into the positioning holes (8).

5. The gantry crane suspension rod structure according to claim 1, characterized in that: A guide assembly for limiting position is provided on the outer wall of the second suspension rod (3), and the guide assembly comprises a mounting frame (14) fixedly mounted on the outer wall of the second suspension rod (3) and a pulley (15) rotatably mounted on the inner side of the mounting frame (14).

6. The gantry crane suspension rod structure according to claim 5, characterized in that: A slide groove (16) adapted to the pulley (15) is provided inside the first suspension rod (2), and the pulley (15) extends into the interior of the slide groove (16).

7. The gantry crane suspension rod structure according to claim 1, characterized in that: A support arm (13) for enhancing stability is welded between the two supporting legs (1) and the first suspension rod (2) and the second suspension rod (3).

8. The gantry crane suspension rod structure according to claim 1, characterized in that: The bottoms of the first suspension rod (2) and the second suspension rod (3) are both provided with suspension rope installation holes (12) for installing suspension ropes, and the outside of the first suspension rod (2) is detachably provided with an inspection plate (11).

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