Buffer for single-beam crane

Abstract

The utility model discloses a buffer for a single-beam crane, which relates to the technical field of cranes, and comprises a fixed disc, a plurality of buffer plates, a plurality of buffer plates and a plurality of buffer plates, and mounting holes are formed in the edge of the upper side of the fixed disc at equal intervals; the buffer assembly is fixed to the middle of the upper side of the fixing disc and comprises a buffer column, the outer side of the buffer column is sleeved with a protective sleeve, a shock absorber is embedded in the buffer column, a plurality of buffer springs are embedded in the buffer column, the upper end of the buffer column is connected with a connecting disc, and the connecting disc is connected with the buffer assembly. The upper end of the connecting disc is connected with a buffer head; the shock absorber, the buffer spring, the buffer column and the buffer head are arranged, the shock absorber, the buffer spring, the buffer column and the buffer head are matched with one another, impact force borne by the buffer can be effectively relieved, and compared with a conventional independent polyurethane buffer, the buffer is better in buffering and damping effect.

Description

Technical Field

[0001] The utility model relates to the technical field of cranes, in particular to a buffer for a single-beam crane. Background Art

[0002] Crane is a heavy machinery that generates large inertia during operation and is prone to unexpected movements. Once the mechanical limiter of the crane fails, the electric hoist or electric trolley of the crane that has reached the end point will collide with the set blocking body at the end point due to inertia. Therefore, a buffer is needed. The buffer can avoid many unexpected situations caused by problems with the limiter or braking device, thereby ensuring the safety of crane operation and reducing the coefficient of danger.

[0003] The buffers used in single-beam cranes on the market are currently made of a single polyurethane material, relying on the elasticity of the polyurethane material itself to buffer the impact force. The buffering effect is too single, resulting in a less than ideal buffering effect. Utility Model Content

[0004] The purpose of the utility model is to provide a buffer for a single-beam crane to solve the problems raised in the above background technology.

[0005] In order to achieve the above-mentioned purpose, the utility model provides the following technical solution: a buffer for a single-beam crane, comprising:

[0006] A fixing plate, wherein the upper edge of the fixing plate is provided with mounting holes at equal intervals;

[0007] A buffer assembly is fixed at the middle part of the upper side of the fixed plate, the buffer assembly includes a buffer column, a protective sleeve is provided on the outer side of the buffer column, a shock absorber is nested inside the buffer column, a plurality of buffer springs are nested inside the buffer column, the upper end of the buffer column is connected to a connecting plate, and the upper end of the connecting plate is connected to a buffer head.

[0008] Preferably, a first accommodating cavity is opened in the middle of the buffer column and passes through the upper and lower ends of the buffer column. The shock absorber is nested in the first accommodating cavity. One end of the shock absorber is connected to the fixed plate, and the other end of the shock absorber is connected to the connecting plate, so that the shock absorber is installed stably and securely, and the shock absorber has a shock-absorbing and buffering effect to buffer the impact force.

[0009] Preferably, the buffer column is provided with a plurality of second accommodating cavities at equal intervals and penetrating the upper and lower ends of the buffer column, the plurality of second accommodating cavities surround the first accommodating cavity, and the plurality of buffer springs are respectively nested in the plurality of second accommodating cavities.

[0010] Preferably, a first convex disc is fixed on the fixed plate at a position corresponding to each of the second accommodating cavities, and the first convex disc is nested in the second accommodating cavity. A second convex disc is fixed on the bottom of the connecting plate at a position corresponding to each of the second accommodating cavities, and the second convex disc is nested in the second accommodating cavity. One end of the buffer spring is connected to the first convex disc, and the other end of the buffer spring is connected to the second convex disc.

[0011] Preferably, the buffer column is made of rubber material, which has good elasticity and good buffering effect.

[0012] Preferably, the protective sleeve is made of polyurethane elastic material, the inner and outer walls of the protective sleeve are both arranged as a wavy structure, the lower end of the protective sleeve is connected to the fixed plate, and the upper end of the fixed plate is connected to the connecting plate, so that the protective sleeve can be installed stably, and the protective sleeve protects the buffer column and the shock absorber and buffer spring in the buffer column.

[0013] Preferably, the buffer head is made of polyurethane elastic material, which has high elasticity and strength, excellent wear resistance, oil resistance, fatigue resistance and vibration resistance, and good buffering effect.

[0014] Preferably, the fixing plate and the connecting plate are both made of stainless steel plates, which have high structural strength and are not easily damaged.

[0015] In the above technical solution, the technical effects and advantages provided by the utility model are:

[0016] By providing a shock absorber, a buffer spring, a buffer column and a buffer head, the shock absorber, the buffer spring, the buffer column and the buffer head cooperate with each other to effectively reduce the impact force. Compared with a conventional single polyurethane buffer, the buffer has a better buffering and shock-absorbing effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in the present utility model. For ordinary technicians in this field, other drawings can also be obtained based on these drawings.

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

[0019] Figure 2 It is a three-dimensional cross-sectional view of the utility model;

[0020] Figure 3 This is a schematic diagram of the fixed disk structure of the utility model;

[0021] Figure 4This is a schematic diagram of the buffer column structure of the utility model;

[0022] Figure 5 This is a schematic diagram of the connection disk structure of the utility model.

[0023] Description of reference numerals:

[0024] 1. Fixed plate; 2. Mounting hole; 3. Buffer column; 4. Protective cover; 5. Shock absorber; 6. Buffer spring; 7. Connecting plate; 8. Buffer head; 9. First accommodating cavity; 10. Second accommodating cavity; 11. First convex plate; 12. Second convex plate. DETAILED DESCRIPTION

[0025] In order to enable those skilled in the art to better understand the technical solution of the present invention, the present invention will be further described in detail below in conjunction with the accompanying drawings.

[0026] The utility model provides Figures 1 to 5 A buffer for a single-beam crane is shown, comprising:

[0027] A fixing plate 1, the upper edge of which is provided with mounting holes 2 at equal intervals;

[0028] The buffer component is fixed on the middle part of the upper side of the fixed plate 1. The buffer component includes a buffer column 3. The outer side of the buffer column 3 is provided with a protective cover 4. The interior of the buffer column 3 is nested with a shock absorber 5. The interior of the buffer column 3 is nested with a plurality of buffer springs 6. The upper end of the buffer column 3 is connected with a connecting plate 7. The upper end of the connecting plate 7 is connected with a buffer head 8. The buffer head 8 is made of polyurethane elastic material. The polyurethane elastic material has high elasticity and strength, excellent wear resistance, oil resistance, fatigue resistance and vibration resistance, and has a good buffering effect.

[0029] A first accommodating cavity 9 is provided in the middle of the buffer column 3 and passes through the upper and lower ends of the buffer column 3. The shock absorber 5 is nested in the first accommodating cavity 9. One end of the shock absorber 5 is connected to the fixed plate 1, and the other end of the shock absorber 5 is connected to the connecting plate 7, so that the shock absorber 5 is installed stably and securely, and the shock absorber 5 has a shock-absorbing and buffering effect to buffer the impact force.

[0030] The buffer column 3 is provided with a plurality of second accommodating cavities 10 that penetrate the upper and lower ends of the buffer column 3 at equal intervals. The plurality of second accommodating cavities 10 surround the first accommodating cavity 9 , and the plurality of buffer springs 6 are respectively nested in the plurality of second accommodating cavities 10 .

[0031] A first boss 11 is fixed on the fixed disk 1 at a position corresponding to each second accommodating cavity 10, and the first boss 11 is nested in the second accommodating cavity 10. A second boss 12 is fixed on the bottom of the connecting disk 7 at a position corresponding to each second accommodating cavity 10, and the second boss 12 is nested in the second accommodating cavity 10. One end of the buffer spring 6 is connected to the first boss 11, and the other end of the buffer spring 6 is connected to the second boss 12.

[0032] The buffer column 3 is made of rubber material, which has good elasticity and good buffering effect.

[0033] The protective sleeve 4 is made of polyurethane elastic material, and the inner and outer walls of the protective sleeve 4 are both arranged as a wavy structure. The lower end of the protective sleeve 4 is connected to the fixed plate 1, and the upper end of the fixed plate 1 is connected to the connecting plate 7, so that the protective sleeve 4 is installed stably. The protective sleeve 4 protects the buffer column 3 and the shock absorber 5 and the buffer spring 6 in the buffer column 3.

[0034] The fixing plate 1 and the connecting plate 7 are both made of stainless steel plates, and have a high structural strength and are not easily damaged.

[0035] In the utility model, when the buffer collides with the stop body, the buffer head 8 collides with the stop body first, and the buffer head 8 is squeezed by force to squeeze the connecting plate 7, and the connecting plate 7 squeezes the buffer column 3, the protective cover 4, the shock absorber 5 and the multiple buffer springs 6. The buffer head 8 first buffers the impact force generated by the collision, and then the buffer column 3, the protective cover 4, the shock absorber 5 and the multiple buffer springs 6 cooperate with each other to buffer and reduce the impact force transmitted by the buffer head 8, thereby reducing the impact force and achieving an effective shock-absorbing and buffering effect. Compared with the conventional single polyurethane buffer, the buffering and shock-absorbing effect of the buffer is better.

[0036] The above only describes some exemplary embodiments of the present invention by way of illustration. It is undoubted that those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A buffer for a single-beam crane, characterized in that: include: A fixing plate (1), wherein the upper edge of the fixing plate (1) is provided with mounting holes (2) at equal intervals; A buffer assembly is fixed to the middle part of the upper side of a fixed plate (1), the buffer assembly comprises a buffer column (3), the outer side of the buffer column (3) is provided with a protective sleeve (4), the interior of the buffer column (3) is embedded with a shock absorber (5), the interior of the buffer column (3) is embedded with a plurality of buffer springs (6), the upper end of the buffer column (3) is connected to a connecting plate (7), and the upper end of the connecting plate (7) is connected to a buffer head (8).

2. A buffer for a single-beam crane according to claim 1, characterized in that: A first accommodating cavity (9) is provided in the middle of the buffer column (3) and passes through the upper and lower ends of the buffer column (3). The shock absorber (5) is nested in the first accommodating cavity (9). One end of the shock absorber (5) is connected to the fixing plate (1), and the other end of the shock absorber (5) is connected to the connecting plate (7).

3. A buffer for a single-beam crane according to claim 2, characterized in that: The buffer column (3) is provided with a plurality of second accommodating cavities (10) at equal intervals and penetrating the upper and lower ends of the buffer column (3); the plurality of second accommodating cavities (10) surround the first accommodating cavity (9); and the plurality of buffer springs (6) are respectively nested in the plurality of second accommodating cavities (10).

4. The buffer for a single-beam crane according to claim 3, characterized in that: A first convex disc (11) is fixed on the fixing disc (1) at a position corresponding to each of the second accommodating cavities (10), and the first convex disc (11) is nested in the second accommodating cavity (10). A second convex disc (12) is fixed on the bottom of the connecting disc (7) at a position corresponding to each of the second accommodating cavities (10), and the second convex disc (12) is nested in the second accommodating cavity (10). One end of the buffer spring (6) is connected to the first convex disc (11), and the other end of the buffer spring (6) is connected to the second convex disc (12).

5. The buffer for a single-beam crane according to claim 1, characterized in that: The buffer column (3) is made of rubber material.

6. The buffer for a single-beam crane according to claim 1, characterized in that: The protective sleeve (4) is made of polyurethane elastic material, the inner and outer walls of the protective sleeve (4) are both arranged in a wave-shaped structure, the lower end of the protective sleeve (4) is connected to the fixing plate (1), and the upper end of the fixing plate (1) is connected to the connecting plate (7).

7. The buffer for a single-beam crane according to claim 1, characterized in that: The buffer head (8) is made of polyurethane elastic material.

8. The buffer for a single-beam crane according to claim 1, characterized in that: The fixing plate (1) and the connecting plate (7) are both made of stainless steel plates.

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