A hydraulic support for a crane

Abstract

This patent discloses a hydraulic foot support for a crane, including a crane body, a mounting groove on the crane body, a hydraulic cylinder installed in the mounting groove, a foot installed on the output end of the hydraulic cylinder, and the foot installed on a rubber pad through a clamping structure; the number of the clamping structures is four, and the clamping structures are distributed in a ring-shaped manner between the foot and the rubber pad at equal intervals, and the clamping structure includes a connecting block, a clamping block, a clamping groove and an elastic member; the connecting block is installed on the foot, and the clamping block is installed on the rubber pad. When the crane body is working, the hydraulic cylinder is controlled to work, and the output end of the hydraulic cylinder drives the foot to move downward, so that the rubber pad contacts the ground and supports the crane body. When the rubber pad is worn out after repeated use and needs to be replaced, the rubber pad is moved downward, the clamping block leaves the clamping groove on the connecting block, and the removable rubber pad is replaced.

Description

Technical Field

[0001] This patent relates to the technical field of crane hydraulic foot supports, specifically a crane hydraulic foot support. Background Art

[0002] A crane is a multi-action lifting machine that can lift and carry heavy objects vertically and horizontally within a certain range. It is also called an overhead crane, an overhead crane, or a crane. However, in order to support the crane stably on the ground during use, hydraulic legs need to be installed at the four corners of the crane to support the crane horizontally on the ground. However, the hydraulic legs of current cranes need to be padded with soft materials (such as wood) when they are in contact with the ground and support the ground in order not to damage the ground. The soft materials are fixedly connected to the hydraulic legs, which makes it difficult to replace them if they are damaged for a long time. Utility Model Content

[0003] The purpose of this patent is to provide a hydraulic foot support for a crane.

[0004] To achieve the above purpose, this patent provides the following technical solutions: a crane hydraulic foot support, including a crane body, a mounting groove is provided on the crane body, a hydraulic cylinder is installed in the mounting groove, a foot is installed on the output end of the hydraulic cylinder, and the foot is installed on a rubber pad through a clamping structure;

[0005] There are four clamping structures, which are distributed in an annular shape and at equal intervals between the base foot and the rubber pad. The clamping structure includes a connecting block, a clamping block, a clamping slot and an elastic member.

[0006] The connecting block is installed on the base, the clamping block is installed on the rubber pad, the clamping slot is arranged on the connecting block, the elastic member is installed in the clamping block, and the clamping block is clamped in the clamping slot.

[0007] Preferably, the hydraulic cylinder is installed in the mounting groove through a fixing structure, the number of the fixing structures is four, the fixing structures are distributed in an annular shape and equidistantly between the hydraulic cylinder and the crane body, and the fixing structure includes an ear plate, a mounting hole, a bolt and a nut;

[0008] The ear plate is installed on the hydraulic cylinder, the mounting hole is opened on the ear plate, the bolt is installed on the crane body, the hydraulic cylinder extends into the mounting groove, the bolt passes through the mounting hole, and the nut is sleeved on the bolt.

[0009] Preferably, a circular groove is provided in the internal thread of the nut, a limiting groove is provided on the circular groove, an internal thread sleeve is placed in the circular groove, a limiting block is installed on the internal thread sleeve, the limiting block is clamped in the limiting groove, and the bolt is sleeved in the internal thread sleeve.

[0010] Preferably, a threaded block is mounted on the nut, and a hexagonal hole is formed on the threaded block.

[0011] Preferably, the nut is provided with a threaded opening, and the threaded block is sleeved in the threaded opening.

[0012] Preferably, the base foot is installed on the output end of the hydraulic cylinder through a connecting structure, the connecting structure includes a screw and a thread groove, the screw is installed on the output end of the hydraulic cylinder, the thread groove is opened on the base foot, and the screw is sleeved in the thread groove.

[0013] Compared with the prior art, the beneficial effects of this patent are: the hydraulic foot support of the crane has the following advantages compared with the traditional technology:

[0014] 1. When the crane body is working, the hydraulic cylinder is controlled to work, and the output end of the hydraulic cylinder drives the bottom foot to move downward, so that the rubber pad contacts the ground and supports the crane body. When the rubber pad is worn out after repeated use and needs to be replaced, the rubber pad is moved downward, the card block leaves the card slot on the connecting block, and the removable rubber pad is replaced;

[0015] 2. Insert the hydraulic cylinder into the installation groove on the crane body, then the bolt passes through the installation hole on the ear plate, and the nut is screwed on the bolt to install the hydraulic cylinder in the installation groove. Otherwise, the hydraulic cylinder can be disassembled for inspection or replacement. Before the nut is screwed on the bolt, put the internal thread sleeve into the circular groove on the nut, and insert the limit block into the limit groove. When screwing the nut on the bolt, the bolt is screwed into the internal thread sleeve, so that the nut and the bolt are doubly fastened, making the hydraulic cylinder installed in the installation groove on the crane body more stable. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic diagram of the structure of this patent;

[0017] Figure 2 This is a schematic diagram of the structure of the patented foot, rubber pad and thread groove;

[0018] Figure 3 This is a schematic diagram of the structure of the connection block, the card block and the card slot of this patent;

[0019] Figure 4 This is a schematic diagram of the structure of patent A.

[0020] In the figure: 1. crane body, 2. mounting groove, 3. hydraulic cylinder, 4. clamping structure, 401. connecting block, 402. clamping block, 403. clamping groove, 404. elastic member, 5. base, 6. rubber pad, 7. connecting structure, 8. screw, 9. threaded groove, 10. fixing structure, 11. ear plate, 12. mounting hole, 13. bolt, 14. nut, 15. round groove, 16. internal threaded sleeve, 17. limiting groove, 18. limiting block, 19. threaded block, 20. hexagonal hole, 21. threaded mouth. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of this patent to clearly and completely describe the technical solutions in the embodiments of this patent. Obviously, the described embodiments are only part of the embodiments of this patent, not all of them. Based on the embodiments in this patent, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this patent.

[0022] See also Figure 1-4 , this patent provides a technical solution: a crane hydraulic foot support, including a crane body 1, a mounting groove 2 is opened on the crane body 1, a hydraulic cylinder 3 is installed in the mounting groove 2, the hydraulic cylinder 3 is connected to the hydraulic pump on the crane body 1 through a hose, and is controlled to start and stop by a control switch in the cockpit of the crane body 1, and the hydraulic cylinder 3 is distributed at the four corners of the crane body 1, a foot 5 is installed on the output end of the hydraulic cylinder 3, and a rubber pad 6 is installed on the foot 5 through a clamping structure 4, and the rubber pad 6 is made of hard rubber material;

[0023] There are four clamping structures 4, which are distributed in an annular shape and equidistantly between the base 5 and the rubber pad 6. The clamping structure 4 includes a connecting block 401, a clamping block 402, a clamping slot 403 and an elastic member 404.

[0024] The connecting block 401 is installed on the base 5, the clamping block 402 is installed on the rubber pad 6, the clamping slot 403 is opened on the connecting block 401, and the elastic member 404 is installed in the clamping block 402. The elastic member 404 and the clamping block 402 are both made of steel sheets, and the elastic member 404 increases the elasticity of the clamping block 402. The clamping block 402 is clamped in the clamping slot 403. When the crane body 1 is working, the hydraulic cylinder 3 is controlled to work, and the output end of the hydraulic cylinder 3 drives the base 5 to move downward, so that the rubber pad 6 contacts the ground and supports the crane body 1. When the rubber pad 6 is worn out after repeated use and needs to be replaced, the rubber pad 6 is moved downward, the clamping block 402 leaves the clamping slot 403 on the connecting block 401, and the removable rubber pad 6 is replaced.

[0025] The hydraulic cylinder 3 is installed in the installation groove 2 through a fixing structure 10. There are four fixing structures 10. The fixing structures 10 are equidistantly distributed in a ring shape between the hydraulic cylinder 3 and the crane body 1. The fixing structure 10 includes an ear plate 11, a mounting hole 12, a bolt 13 and a nut 14.

[0026] The ear plate 11 is installed on the hydraulic cylinder 3, the mounting hole 12 is opened on the ear plate 11, the bolt 13 is installed on the crane body 1, the hydraulic cylinder 3 extends into the mounting groove 2, the bolt 13 passes through the mounting hole 12, and the nut 14 is sleeved on the bolt 13;

[0027] A circular groove 15 is provided in the internal thread of the nut 14, and a limiting groove 17 is provided on the circular groove 15. An internal thread sleeve 16 is placed in the circular groove 15. The internal thread in the internal thread sleeve 16 is made to match the external thread on the bolt 13. A limiting block 18 is installed on the internal thread sleeve 16. The limiting block 18 is clamped in the limiting groove 17, and the bolt 13 is sleeved in the internal thread sleeve 16.

[0028] When the hydraulic cylinder 3 is inserted into the mounting groove 2 on the crane body 1, the bolt 13 passes through the mounting hole 12 on the ear plate 11, and the nut 14 is screwed on the bolt 13, so that the hydraulic cylinder 3 is installed in the mounting groove 2. Otherwise, the hydraulic cylinder 3 can be disassembled for inspection or replacement. Before the nut 14 is screwed on the bolt 13, the internal threaded sleeve 16 is put into the circular groove 15 on the nut 14, and the limit block 18 is stuck in the limit groove 17. When the nut 14 is screwed on the bolt 13, the bolt 13 is screwed into the internal threaded sleeve 16, so that the nut 14 and the bolt 13 are doubly fastened, so that the hydraulic cylinder 3 is installed in the mounting groove 2 on the crane body 1 more stably.

[0029] A threaded block 19 is installed on the nut 14, and a hexagonal hole 20 is formed on the threaded block 19. A threaded opening 21 is formed on the nut 14. The threaded block 19 is sleeved in the threaded opening 21, and an external hexagonal wrench is inserted into the hexagonal hole 20 to facilitate screwing the nut 14. When the hexagonal hole 20 is worn, the threaded block 19 can be unscrewed from the threaded opening 21 and replaced without replacing the nut 14.

[0030] The base 5 is installed on the output end of the hydraulic cylinder 3 through a connecting structure 7. The connecting structure 7 includes a screw 8 and a threaded groove 9. The screw 8 is installed on the output end of the hydraulic cylinder 3. The threaded groove 9 is provided on the base 5. The screw 8 is sleeved in the threaded groove 9. The threaded groove 9 on the base 5 is screwed onto the screw 8 on the output end of the hydraulic cylinder 3, so that the base 5 can be installed on the output end of the hydraulic cylinder 3.

[0031] When using the hydraulic foot support of the crane, first screw the thread groove 9 on the foot 5 onto the screw 8 on the output end of the hydraulic cylinder 3, so that the foot 5 is installed on the output end of the hydraulic cylinder 3, and the hydraulic cylinder 3 is inserted into the installation groove 2 on the crane body 1, and the bolt 13 passes through the installation hole 12 on the ear plate 11, and the nut 14 is screwed on the bolt 13, so that the hydraulic cylinder 3 is installed in the installation groove 2, and vice versa, the hydraulic cylinder 3 can be disassembled for inspection or replacement, and before the nut 14 is screwed on the bolt 13, the internal thread sleeve 16 is put into the circular groove 15 on the nut 14, and the limit block 18 is stuck in the limit groove 17, when the nut 14 is screwed on the bolt 13, the bolt 13 is screwed into the internal threaded sleeve 16, so that the nut 14 and the bolt 13 are doubly fastened, so that the hydraulic cylinder 3 is installed in the mounting groove 2 on the crane body 1 more stably. When the crane body 1 is working, the hydraulic cylinder 3 is controlled to work, and the output end of the hydraulic cylinder 3 drives the foot 5 to move downward, so that the rubber pad 6 contacts the ground to support the crane body 1. When the rubber pad 6 is worn out after repeated use and needs to be replaced, the rubber pad 6 is moved downward, the clamping block 402 leaves the clamping groove 403 on the connecting block 401, and the removable rubber pad 6 is replaced.

[0032] Although the embodiments of the present patent have been shown and described, it will be understood 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 patent, and the scope of the present patent is defined by the appended claims and their equivalents.

Claims

1. A hydraulic foot support for a crane, comprising a crane body (1), characterized in that: The crane body (1) is provided with a mounting groove (2), a hydraulic cylinder (3) is installed in the mounting groove (2), a foot (5) is installed on the output end of the hydraulic cylinder (3), and the foot (5) is installed on a rubber pad (6) via a clamping structure (4); The number of the clamping structures (4) is four, and the clamping structures (4) are distributed in an annular shape and at equal intervals between the base foot (5) and the rubber pad (6), and the clamping structure (4) comprises a connecting block (401), a clamping block (402), a clamping groove (403) and an elastic member (404); The connecting block (401) is mounted on the base (5), the clamping block (402) is mounted on the rubber pad (6), the clamping slot (403) is provided on the connecting block (401), the elastic member (404) is mounted in the clamping block (402), and the clamping block (402) is clamped in the clamping slot (403).

2. A crane hydraulic foot support according to claim 1, characterized in that: The hydraulic cylinder (3) is installed in the installation groove (2) through a fixing structure (10), the number of the fixing structures (10) is four, the fixing structures (10) are distributed in an annular shape and at equal intervals between the hydraulic cylinder (3) and the crane body (1), and the fixing structure (10) comprises an ear plate (11), a mounting hole (12), a bolt (13) and a nut (14); The ear plate (11) is mounted on the hydraulic cylinder (3), the mounting hole (12) is opened on the ear plate (11), the bolt (13) is mounted on the crane body (1), the hydraulic cylinder (3) extends into the mounting groove (2), the bolt (13) passes through the mounting hole (12), and the nut (14) is sleeved on the bolt (13).

3. A crane hydraulic foot support according to claim 2, characterized in that: A circular groove (15) is provided in the internal thread of the nut (14), a limiting groove (17) is provided on the circular groove (15), an internal thread sleeve (16) is placed in the circular groove (15), a limiting block (18) is installed on the internal thread sleeve (16), the limiting block (18) is clamped in the limiting groove (17), and the bolt (13) is sleeved in the internal thread sleeve (16).

4. A crane hydraulic foot support according to claim 2, characterized in that: A threaded block (19) is mounted on the nut (14), and a hexagonal hole (20) is formed on the threaded block (19).

5. A crane hydraulic foot support according to claim 4, characterized in that: The nut (14) is provided with a threaded opening (21), and the threaded block (19) is sleeved in the threaded opening (21).

6. The hydraulic foot support for a crane according to claim 1, characterized in that: The base (5) is mounted on the output end of the hydraulic cylinder (3) via a connecting structure (7); the connecting structure (7) comprises a screw (8) and a thread groove (9); the screw (8) is mounted on the output end of the hydraulic cylinder (3); the thread groove (9) is formed on the base (5); and the screw (8) is sleeved in the thread groove (9).

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