Buffer mechanism of crane

Abstract

The utility model provides a buffer mechanism of a crane, which belongs to the technical field of crane protection and comprises a mounting plate, a first connecting frame and a second connecting frame, one end of a first support rod is symmetrically and fixedly mounted on the side wall of the mounting plate, and a first spring is sleeved outside the first support rod; the exteriors of the first supporting rod and the second supporting rod are connected with adjusting seats through formed external threads, in the using process of the crane, the buffering effect is achieved through linkage elastic deformation of the first spring and the second spring, and when the elastic coefficient of the first spring and the second spring is changed after multiple times of elastic deformation, the buffering effect is achieved. The adjusting seats are screwed on the outer surfaces of the external threads of all the parts, so that the adjusting seats extrude the first spring and the second spring on the outer surfaces of the external threads of all the parts to adjust the elastic coefficient, the buffering effect of the first spring and the second spring is guaranteed, and then the protection performance of the crane is guaranteed.

Description

Technical Field

[0001] The utility model belongs to the technical field of crane protection, and in particular relates to a buffer mechanism of a crane. Background Art

[0002] Cranes refer to multi-action lifting machinery that can lift and carry heavy objects vertically and horizontally within a certain range. Some heavy equipment has the working characteristic of intermittent movement, that is, the corresponding mechanisms of taking materials, moving, unloading, etc. work alternately in one working cycle. Cranes are developing and using more and more widely in the market. In order to avoid collision accidents, buffers are usually installed on the operating mechanism.

[0003] A related technology (publication number: CN218325998U) discloses a crane buffer device, and the disclosed technical solution is: the crane buffer device is suitable for single-beam crane buffering, and can be specifically installed on the I-beam single beam of the single-beam crane. Compared with the conventional single polyurethane buffer, the buffer device has a better buffering effect. During use, the polyurethane elastic block is stressed, the telescopic guide column shrinks, and the polyurethane elastic block and the two springs can play a buffering role, effectively improving the buffering effect;

[0004] In the above disclosed technical solutions, it is found that the related technologies have the following problems: after multiple buffering uses, the elastic coefficient of the spring will change, resulting in a decrease in the buffering effect, and the operation process is more complicated by disassembly and replacement. In this regard, we propose a new buffer mechanism for cranes;

[0005] It should be noted that the information disclosed in the above background technology section is only used to enhance the understanding of the background technology section of this application, and therefore may include prior art information that does not constitute known to ordinary technicians in the field. Utility Model Content

[0006] The utility model aims to solve at least one of the technical problems existing in the prior art or related technologies. In order to solve the problem of crane protection existing in the prior art, the utility model provides a buffer mechanism of a crane, which adopts a protection mechanism combined with an elastic adjustment mechanism to achieve the effect of improving the protection. The specific technical solution is:

[0007] A buffer mechanism of a crane comprises a mounting plate, a first connecting frame and a second connecting frame, wherein one end of a first support rod is symmetrically fixedly mounted on the side wall of the mounting plate, the other end of the first support rod is fixedly mounted on the side wall of a movable plate, the first support rod sequentially penetrates the inner cavity of the first connecting frame and the side wall of the second connecting frame and extends to the inner cavity, the inner cavity of the second connecting frame is symmetrically fixedly mounted with a second support rod, the movable plate is sleeved on the outside of the second support rod, the outside of the second support rod is sleeved with a second spring, the outside of the first support rod and the second support rod are both connected to an adjustment seat through an external thread, and connecting mechanisms are provided on both sides of the first connecting frame and the second connecting frame.

[0008] In addition, the buffer mechanism of a crane in the above technical solution provided by the utility model may also have the following additional technical features:

[0009] In the above technical solution, a buffer block is fixedly mounted on the side wall of the mounting plate, and the buffer block is an elastic body.

[0010] The connection mechanism comprises a mounting frame, which is symmetrically fixedly mounted on two side walls of the first connecting frame and the second connecting frame. The inner cavity of the mounting frame is rotatably connected to a lead screw, and the outer thread of the lead screw is connected to a fixing seat.

[0011] The inner cavity of the mounting frame is symmetrically fixed with a sliding rod, and the fixing seat is slidably connected to the outside of the sliding rod.

[0012] The side wall of the fixing seat is symmetrically provided with fixing holes.

[0013] One end of the lead screw is fixedly connected with an operating rod, and the outside of the operating rod is sleeved with an anti-slip sleeve.

[0014] Compared with the prior art, the buffer mechanism of a crane of the utility model has the following beneficial effects:

[0015] 1. During the use of the crane, the first spring and the second spring are elastically deformed in conjunction to achieve a buffering effect. When the first spring and the second spring undergo multiple elastic deformations and the elastic coefficient changes, each adjustment seat is screwed on the outer surface of the external thread of each part, so that each adjustment seat squeezes and adjusts the elastic coefficient of the first spring and the second spring on the outer surface of the external thread of each part, thereby ensuring the buffering effect of the first spring and the second spring, and further ensuring the protectiveness of the crane.

[0016] 2. Turn the screw on the mounting frame to adjust the position of the fixing seat to the position corresponding to the crane I-beam, then pass the bolt through the fixing hole and fix it on the surface of the crane I-beam. Install it by adjusting it to the corresponding position, which will bring convenience to the installation process for relevant personnel.

[0017] 3. When the lead screw is rotated to adjust the installation position of the fixed seat, the fixed seat slides on the outer surfaces of the two sliding rods at the same time. The two sliding rods parallel to the lead screw ensure the stability of the movement of the fixed seat and prevent the position of the fixed seat from shifting, thereby ensuring the stability of the connection between the first connecting frame and the second connecting frame and the crane. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a structural schematic diagram of a buffer mechanism of a crane of the utility model;

[0019] Figure 2 It is a schematic diagram of the installation frame part of the utility model;

[0020] in, Figure 1 and Figure 2 The correspondence between the figure marks and the component names is: 1-mounting plate, 2-buffer block, 3-mounting frame, 4-operating rod, 5-first support rod, 6-first spring, 7-adjusting seat, 10-first connecting frame, 11-movable plate, 13-external thread, 14-second connecting frame, 15-screw, 16-second spring, 17-second support rod, 18-sliding rod, 19-fixing seat, 20-fixing hole. DETAILED DESCRIPTION

[0021] In order to more clearly understand the above-mentioned purpose, features and advantages of the utility model, the utility model is further described in detail below in conjunction with the accompanying drawings and specific implementation methods. It should be noted that the embodiments of the present application and the features in the embodiments can be combined with each other without conflict.

[0022] In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Therefore, the protection scope of the present invention is not limited to the specific embodiments disclosed below.

[0023] The following is a combination of specific implementation cases and attached Figure 1 and 2 The present invention is further described below, but the present invention is not limited to these embodiments.

[0024] Example 1

[0025] A buffer mechanism of a crane, such as Figure 1 and Figure 2As shown, it includes a mounting plate 1, a first connecting frame 10 and a second connecting frame 14, one end of a first support rod 5 is symmetrically fixedly installed on the side wall of the mounting plate 1, and the other end of the first support rod 5 is fixedly installed on the side wall of the movable plate 11, the first support rod 5 sequentially penetrates the inner cavity of the first connecting frame 10 and the side wall of the second connecting frame 14 and extends to the inner cavity, one end of the two first support rods 5 is vertically fixed to the surface of the mounting plate 1 in parallel with each other, the other end of the first support rod 5 sequentially penetrates the interior of the first connecting frame 10 and the side wall of the second connecting frame 14 to extend to the interior of the second connecting frame 14 and is vertically fixed to the surface of the movable plate 11 located inside the second connecting frame 14, so that the first support rod 5 is simultaneously on the side walls of the first connecting frame 10 and the second connecting frame 14 The mounting plate 1 slides in the through hole, so that the two movable plates 11 located inside the second connecting frame 14 are driven to move by the two first supporting rods 5. The outside of the first supporting rod 5 is sleeved with a first spring 6, and the first spring 6 is movably sleeved on the outer surface of the first supporting rod 5 located between the mounting plate 1 and the first connecting frame 10. The left end of the first spring 6 is vertically fixed to the surface of the mounting plate 1, so that the first spring 6 fits on the outer surface of the first supporting rod 5 and slides telescopically. The inner cavity of the second connecting frame 14 is symmetrically fixed with second supporting rods 17. The two second supporting rods 17 are vertically fixed in parallel with each other inside the second connecting frame 14. The two parallel second supporting rods 17 are located in parallel with each other on both sides of the two first supporting rods 5 extending to the inside. The movable plate 11 is sleeved on the outside of the second support rod 17, and the two movable plates 11 are movably sleeved on the outer surface of the second support rod 17 through the through holes opened on the surface, so that the movable plate 11 is fitted on the outer surface of the second support rod 17 and slides. The second spring 16 is sleeved on the outside of the second support rod 17, and the second spring 16 is movably sleeved on the outer surface of the part of the second support rod 17 located between the movable plate 11 and the inner wall of the second connecting frame 14, so that the second spring 16 is fitted on the outer surface of the part of the second support rod 17 and slides telescopically. One end of the second spring 16 is fixed on the surface of the movable plate 11, and the outside of the first support rod 5 and the second support rod 17 are connected to the adjustment seat 7 through the external thread 13 opened, and the through hole between the first support rod 5 and the first connecting frame 10 is An external thread 13 is provided on the corresponding outer surface, and the adjusting seat 7 is connected to the external thread 13 on the corresponding position of the surface of the first connecting frame 10 by a threaded through hole penetrating the inner cavity on the surface, so that the first spring 6 is located between the adjusting seat 7 and the mounting plate 1, and another part of the external thread 13 is provided at the position where the second support rod 17 and the inner wall of the second connecting frame 14 are fixed, and another adjusting seat 7 is connected to the part of the external thread 13 by a threaded through hole provided on the surface, so that the second spring 16 is located between the movable plate 11 and the adjusting seat 7, and connecting mechanisms are provided on both sides of the first connecting frame 10 and the second connecting frame 14, which are fixedly connected to the I-beam single beam of the crane through the connecting mechanisms on both sides of the first connecting frame 10 and the second connecting frame 14. When in use,The fixing seats 19 inside the adjusting connection mechanism are fixedly connected to the corresponding parts of the I-beam single beam of the crane. During the use of the crane, the first spring 6 and the second spring 16 are elastically deformed in linkage to achieve a buffering effect. The first spring 6 and the second spring 16 undergo multiple elastic deformations, so that the elastic coefficients of the first spring 6 and the second spring 16 change, causing the buffering effect to decrease. At this time, each adjusting seat 7 is screwed on the outer surface of each part of the external thread 13, so that each adjusting seat 7 squeezes and adjusts the elastic coefficients of the first spring 6 and the second spring 16 on the outer surface of each part of the external thread 13, thereby ensuring the buffering effect of the first spring 6 and the second spring 16, and further ensuring the protectiveness of the crane.

[0026] Among them, a buffer block 2 is fixedly installed on the side wall of the mounting plate 1. The buffer block 2 is an elastomer. The buffer block 2 made of the elastomer material is a polyurethane elastic block. The buffer block 2 improves the buffering effect of the surface of the mounting plate 1 and plays a protective effect.

[0027] It is worth mentioning that the connecting mechanism includes a mounting frame 3, which is symmetrically fixed on the two side walls of the first connecting frame 10 and the second connecting frame 14 respectively. The inner cavity of the mounting frame 3 is rotatably connected with a screw 15, and bearings are symmetrically embedded and installed on the inner walls of the two side surfaces of the mounting frame 3 respectively. The two ends of the screw 15 are respectively embedded and installed in the inside of the two bearings, so that the screw 15 rotates inside the mounting frame 3, and the external thread of the screw 15 is connected with a fixing seat 19, and the fixing seat 19 is connected to the screw 15 through a threaded through hole opened on the surface. When the first connecting frame 10 and the second connecting frame 14 are respectively connected to the crane, the screw 15 is rotated on the mounting frame 3 so that the fixing seat 19 threadedly connected to the screw 15 slides against the inner wall of the mounting frame 3, and the position of the fixing seat 19 is adjusted to a position corresponding to the I-beam single beam of the crane, and then the bolt is passed through the fixing hole and fixed to the surface of the I-beam single beam of the crane. It is installed by adjusting to the corresponding position, thereby facilitating the installation process for relevant personnel.

[0028] In addition, the inner cavity of the mounting frame 3 is symmetrically fixed with sliding rods 18, and the two ends of the two sliding rods 18 are respectively vertically fixed to the inner walls on both sides of the mounting frame 3, and the fixing seat 19 is slidably connected to the outside of the sliding rod 18. The fixing seat 19 is movably sleeved on the outer surface of the sliding rod 18 through a through hole opened on the surface. When the screw 15 is rotated to adjust the installation position of the fixing seat 19, the fixing seat 19 is made to slide on the outer surfaces of the two sliding rods 18 at the same time. The stability of the moving process of the fixing seat 19 is guaranteed by the two sliding rods 18 parallel to the screw 15, and the position deviation of the fixing seat 19 is prevented, thereby ensuring the stability of the connection between the first connecting frame 10 and the second connecting frame 14 and the crane.

[0029] In addition, the side wall of the fixing seat 19 is symmetrically provided with fixing holes 20, and the surface of the fixing seat 19 is provided with a fixing hole 20 that penetrates the inner cavity. After the bolts are passed through the fixing holes 20, the fixing seat 19 is fixed to the surface of the crane I-beam, making the operation process more convenient.

[0030] Furthermore, one end of the screw 15 is fixedly connected to the operating rod 4, and the outside of the operating rod 4 is sleeved with an anti-slip sleeve, and the anti-slip sleeve made of elastomeric material is fixedly sleeved on the outer surface of the operating rod 4. The operating rod 4 passes through the side wall of the mounting frame 3 and is fixedly connected to the corresponding end of the screw 15. The operating rod 4 rotates in the through hole in the side wall of the mounting frame 3. The operating rod 4 drives the screw 14 to rotate and adjust the installation position of the fixed seat 19, making the operation process more convenient.

[0031] The buffer mechanism of a crane in this embodiment has the following working principle: the screw 15 is driven to rotate by the operating lever 4 to adjust the position of the fixing seat 19 to the position corresponding to the I-beam of the crane, and then the bolt is passed through the fixing hole 20 and fixed on the surface of the I-beam of the crane. During the use of the crane, the first spring 6 and the second spring 16 are elastically deformed in conjunction with each other to achieve a buffering effect. When the buffering effect decreases, each adjusting seat 7 is screwed on the outer surface of each part of the external thread 13, so that each adjusting seat 7 squeezes the first spring 6 and the second spring 16 on the outer surface of each part of the external thread 13 to adjust the elastic coefficient.

[0032] In the description of the present invention, the term "plurality" refers to two or more than two. Unless otherwise clearly defined, the orientation or positional relationship indicated by the terms "upper" and "lower" is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present invention and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it cannot be understood as a limitation on the present invention. The terms "connection", "installation", "fixation", etc. should be understood in a broad sense. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be directly connected or indirectly connected through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0033] In the description of the present invention, the terms "one embodiment", "some embodiments", "specific embodiments", etc. mean that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In the present invention, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0034] The above description is only the preferred embodiment of the utility model, and is not intended to limit the utility model. For those skilled in the art, the utility model can have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. A buffer mechanism for a crane, comprising a mounting plate (1), a first connecting frame (10) and a second connecting frame (14), characterized in that: One end of a first support rod (5) is symmetrically fixedly mounted on the side wall of the mounting plate (1), and the other end of the first support rod (5) is fixedly mounted on the side wall of the movable plate (11); the first support rod (5) sequentially penetrates the inner cavity of the first connecting frame (10) and the side wall of the second connecting frame (14) and extends to the inner cavity; a second support rod (17) is symmetrically fixedly mounted in the inner cavity of the second connecting frame (14); the movable plate (11) is sleeved on the outside of the second support rod (17); a second spring (16) is sleeved on the outside of the second support rod (17); the outside of the first support rod (5) and the second support rod (17) are both connected to an adjustment seat (7) via an external thread (13); and connecting mechanisms are provided on both sides of the first connecting frame (10) and the second connecting frame (14).

2. The buffer mechanism of a crane according to claim 1, characterized in that: A buffer block (2) is fixedly mounted on the side wall of the mounting plate (1), and the buffer block (2) is an elastic body.

3. The buffer mechanism of a crane according to claim 1, characterized in that: The connection mechanism comprises a mounting frame (3), wherein the mounting frame (3) is symmetrically fixedly mounted on two side walls of a first connecting frame (10) and a second connecting frame (14), respectively; an inner cavity of the mounting frame (3) is rotatably connected to a lead screw (15), and an outer thread of the lead screw (15) is connected to a fixed seat (19).

4. The buffer mechanism of a crane according to claim 3, characterized in that: A sliding rod (18) is symmetrically fixedly mounted in the inner cavity of the mounting frame (3), and the fixing seat (19) is slidably connected to the outside of the sliding rod (18).

5. The buffer mechanism of a crane according to claim 4, characterized in that: The side wall of the fixing seat (19) is symmetrically provided with fixing holes (20).

6. The buffer mechanism of a crane according to claim 3, characterized in that: One end of the lead screw (15) is fixedly connected to an operating rod (4), and an anti-slip sleeve is sleeved on the outside of the operating rod (4).

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