Connecting structure for lifting oil cylinder and frame of dumper

Abstract

The utility model discloses a dumper lifting oil cylinder and frame connecting structure which comprises a fixing assembly, a supporting assembly is arranged in the fixing assembly, bolt assemblies are arranged on the outer walls of the two sides of the top of the fixing assembly, the supporting assembly comprises a first installation cylinder and a second installation cylinder, and a plurality of grooves are formed in the outer walls of one sides of the first installation cylinder and the second installation cylinder. A threaded groove is formed in one end of the first mounting cylinder, a threaded column is integrally formed at one end of the second mounting cylinder and is in threaded connection with the interior of the threaded groove, the fixing assembly comprises a mounting seat, and threaded seats are welded to the outer walls of the two sides of the top of the mounting seat; the supporting assembly is formed by splicing the first mounting cylinder and the second mounting cylinder, the first mounting cylinder and the second mounting cylinder have large diameters and can bear heavy loads, the strength of the first mounting cylinder and the strength of the second mounting cylinder can be improved due to the design of the grooves, the bearing capacity of the supporting assembly is improved, and the supporting assembly is convenient to use. And meanwhile, the design of the threaded column and the threaded groove facilitates disassembly of the supporting assembly.

Description

Technical Field

[0001] The utility model relates to the technical field of dump trucks, in particular to a connection structure between a lifting oil cylinder and a frame of a dump truck. Background Art

[0002] Dump trucks are the main transportation equipment in open-pit mines. They have the characteristics of high load capacity, long continuous operation time and high requirements for structural stability. The lifting cylinder is the main actuator for the dump truck compartment to achieve automatic flipping and unloading, and is usually installed on the left and right sides of the frame.

[0003] Chinese patent number CN111038354A provides a mining dump truck lifting cylinder and frame connection structure, including: a frame connection seat, a lifting pin shaft, a fixed pin shaft, a spherical bearing, a retaining ring, a wear-resistant bushing, a stopper, a spacer, and a lifting cylinder head. One end of the lifting pin shaft is sleeved in the first pin shaft mounting hole and the wear-resistant bushing, and the fixed pin shaft is installed in the first pin shaft fixing hole and the second pin shaft fixing through hole, and the frame connection seat is connected to the lifting pin shaft; the other end is sleeved in the second shaft mounting hole, the spherical bearing, and the spacer, and the spacer is located between the lifting cylinder head and the frame connection seat; the spherical bearing and the retaining ring are installed in the closed mounting cavity, and the two retaining rings are located on both sides of the spherical bearing; the stopper is installed at the end of the lifting pin shaft, and the bolt passes through the bolt fixing hole and is connected to the stopper fixing threaded hole, and the lifting cylinder head is connected to the lifting pin shaft. The present invention can avoid early eccentric wear and effectively improve the maintainability and interchangeability of the components in this part.

[0004] Since the lifting cylinder of a mining dump truck will be repeatedly lifted and lowered under the action of the hydraulic lifting system during operation, the connection structure between the lifting cylinder and the frame will be subjected to a large alternating load, which can easily cause the connection structure between the frame and the lifting cylinder to break. Therefore, it is urgent to design a connection structure between the lifting cylinder and the frame of a dump truck to solve the above problem. Utility Model Content

[0005] The utility model aims to provide a connection structure between a lifting oil cylinder and a frame of a dump truck, so as to solve the problems raised in the above-mentioned background technology.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a connection structure between a lifting cylinder of a dump truck and a frame, comprising a fixing assembly, a supporting assembly being arranged inside the fixing assembly, bolt assemblies being arranged on the outer walls on both sides of the top of the fixing assembly, the supporting assembly comprising an installation cylinder 1 and an installation cylinder 2, a plurality of grooves being arranged on the outer walls on one side of the installation cylinder 1 and the installation cylinder 2, a threaded groove being arranged at one end of the installation cylinder 1, a threaded column being integrally formed at one end of the installation cylinder 2, and the threaded column being threadedly connected inside the threaded groove.

[0007] Wherein, the fixing assembly comprises a mounting seat, and threaded seats are welded on both sides of the outer walls of the top of the mounting seat, and the bolt assembly is threadedly connected inside the threaded seat.

[0008] Wherein, support plates are welded to the outer walls on both sides of the top of the mounting seat, and a mounting hole is opened on the outer wall of one side of the support plate.

[0009] Wherein, two mounting grooves are arranged on an outer wall of one side of the mounting seat, and two clamping plates are slidably connected inside the mounting grooves.

[0010] Wherein, a threaded rod is installed on one side of the inner wall of the installation groove through a bearing, and a nut is integrally formed at one end of the threaded rod.

[0011] Wherein, a rack plate is integrally formed on one side of the clamping plate, and the rack plate and the threaded rod are meshed with each other.

[0012] Wherein, the bolt assembly includes a fixing bolt, the fixing bolt is threadedly connected to a threaded seat and an interior of a nut, and the bottom end of the fixing bolt is threadedly connected to a fixing nut.

[0013] Compared with the prior art, the beneficial effects of the utility model are:

[0014] The utility model provides a support assembly, which is composed of a first installation tube and a second installation tube. The first installation tube and the second installation tube have a thicker diameter and can bear a heavier load. The design of the groove can improve the strength of the first installation tube and the second installation tube, thereby improving the bearing capacity of the support assembly. At the same time, the design of the threaded column and the threaded groove facilitates the disassembly of the support assembly. Through the provided threaded rod, threaded column, nut, rack plate and clamping plate, when the structure needs to be disassembled, the fixing bolt can be rotated to make the threaded rod rotate with the nut and the threaded rod, so that the threaded rod drives the two rack plates to move toward each other, so that the two clamping plates are close to or away from each other, so that the two clamping plates are close to the frame or detached from the frame, thereby realizing rapid installation or replacement of the structure. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the three-dimensional structure of the utility model;

[0016] Figure 2 This is a schematic diagram of the structure of the fixed component of the utility model;

[0017] Figure 3 This is a schematic diagram of the top view of the mounting seat of the utility model;

[0018] Figure 4 This is a schematic diagram of the structure of the support assembly of the utility model;

[0019] Figure 5 This is a schematic diagram of the structure of the bolt assembly of the utility model.

[0020] In the figure: 1. fixing assembly; 2. supporting assembly; 3. bolt assembly; 4. mounting seat; 5. clamping plate; 6. threaded seat; 7. support plate; 8. mounting hole; 9. mounting groove; 10. rack plate; 11. threaded rod; 12. nut; 13. fixing bolt; 14. fixing nut; 15. mounting tube one; 16. groove; 17. threaded groove; 18. mounting tube two; 19. threaded column. DETAILED DESCRIPTION

[0021] 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.

[0022] See also Figure 1-5 The utility model provides a technical solution: a connection structure between a lifting cylinder of a dump truck and a vehicle frame, comprising a fixing assembly 1, a supporting assembly 2 is arranged inside the fixing assembly 1, bolt assemblies 3 are arranged on the outer walls on both sides of the top of the fixing assembly 1, and the supporting assembly 2 comprises a mounting cylinder 15 and a mounting cylinder 2 18, a plurality of grooves 16 are arranged on the outer walls on one side of the mounting cylinder 15 and the mounting cylinder 2 18, a threaded groove 17 is arranged at one end of the mounting cylinder 15, a threaded column 19 is integrally formed at one end of the mounting cylinder 2 18, and the threaded column 19 is threadedly connected inside the threaded groove 17, when the lifting cylinder is operating, the mounting cylinder 15 and the mounting cylinder 2 18 have a thicker diameter and can bear a heavier load, and the design of the groove 16 can improve the strength of the mounting cylinder 15 and the mounting cylinder 2 18, thereby improving the bearing capacity of the supporting assembly 2, and at the same time, the design of the threaded column 19 and the threaded groove 17 facilitates the disassembly of the supporting assembly 2.

[0023] Among them, the fixing component 1 includes a mounting seat 4, threaded seats 6 are welded to the outer walls on both sides of the top of the mounting seat 4, the bolt assembly 3 is threadedly connected to the inside of the threaded seat 6, support plates 7 are welded to the outer walls on both sides of the top of the mounting seat 4, and a mounting hole 8 is provided on the outer wall of one side of the support plate 7, two mounting grooves 9 are provided on the outer wall of one side of the mounting seat 4, and two clamping plates 5 are slidably connected inside the mounting groove 9, a threaded rod 11 is installed on one side of the inner wall of the mounting groove 9 through a bearing, and a nut 12 is integrally formed at one end of the threaded rod 11, and a rack plate 10 is integrally formed on one side of the clamping plate 5, and the rack plate 10 and the threaded rod 11 are meshed with each other. When installing the structure, the fixing bolt 13 can be rotated to rotate the threaded rod 11 with the nut 12 and the threaded rod 11, so that the threaded rod 11 and the two rack plates 10 move toward each other. , so that the two clamping plates 5 are close to each other, so that the two clamping plates 5 are close to the frame. When the clamping plates 5 are subsequently stuck on the frame, the threaded rod 11 cannot continue to rotate with the rack plate 10. At this time, continuing to rotate the fixing bolt 13 will cause the fixing bolt 13 to rotate in the threaded seat 6 and the nut 12, so that the bottom end of the fixing bolt 13 passes through the frame, and then the worker can screw the fixing nut 14 into the fixing bolt 13, so that the fixing assembly 1 is tightly stuck on the frame, and then put one end of the lifting cylinder between the two support plates 7, and then the worker can pass the mounting tube 1 15 and the mounting tube 2 18 through the mounting hole 8, and then rotate the mounting tube 1 15 and the mounting tube 2 18, so that the mounting tube 1 15 and the mounting tube 2 18 are spliced ​​together through the threaded groove 17 and the threaded column 19, so that the lifting cylinder is installed on the structure.

[0024] Among them, the bolt assembly 3 includes a fixing bolt 13, which is threadedly connected to the threaded seat 6 and the inside of the nut 12, and the bottom end of the fixing bolt 13 is threadedly connected to the fixing nut 14. The bolt assembly 3 composed of the fixing bolt 13 and the fixing nut 14 can improve the firmness of the fixing assembly 1 on the frame.

[0025] Working principle: when the structure needs to be installed, the fixing bolt 13 can be rotated to make the threaded rod 11 rotate with the nut 12 and the threaded rod 11, so that the threaded rod 11 and the two rack plates 10 move toward each other, so that the two clamping plates 5 are close to each other, and the two clamping plates 5 are close to the frame. When the clamping plates 5 are subsequently stuck on the frame, the threaded rod 11 cannot continue to rotate with the rack plate 10. At this time, the fixing bolt 13 is continued to be rotated, which will make the fixing bolt 13 rotate in the threaded seat 6 and the nut 12, so that the bottom end of the fixing bolt 13 passes through the frame, and then the worker can screw the fixing nut 14 into the fixing bolt 13, so that the fixing assembly 1 is tightly stuck on the frame, and then the worker can One end of the lifting cylinder is placed between the two support plates 7, and then the worker can pass the mounting tube 1 15 and the mounting tube 2 18 through the mounting hole 8, and then rotate the mounting tube 1 15 and the mounting tube 2 18 so that the mounting tube 1 15 and the mounting tube 2 18 are spliced ​​together through the threaded groove 17 and the threaded column 19, so that the lifting cylinder is installed on the structure. When the lifting cylinder is operating, the mounting tube 1 15 and the mounting tube 2 18 have a thicker diameter and can bear a heavier load, and the design of the groove 16 can increase the strength of the mounting tube 1 15 and the mounting tube 2 18, thereby improving the bearing capacity of the support assembly 2. At the same time, the design of the threaded column 19 and the threaded groove 17 facilitates the disassembly of the support assembly 2.

[0026] 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 connection structure between a lifting cylinder and a frame of a dump truck, comprising a fixing assembly (1), characterized in that: The fixing assembly (1) is provided with a support assembly (2) inside. The outer walls on both sides of the top of the fixing assembly (1) are provided with bolt assemblies (3). The support assembly (2) comprises a first mounting tube (15) and a second mounting tube (18). The outer walls of one side of the first mounting tube (15) and the second mounting tube (18) are provided with a plurality of grooves (16). One end of the first mounting tube (15) is provided with a threaded groove (17). One end of the second mounting tube (18) is integrally formed with a threaded column (19), and the threaded column (19) is threadedly connected inside the threaded groove (17).

2. The connection structure between the lifting cylinder and the frame of a dump truck according to claim 1, characterized in that: The fixing assembly (1) comprises a mounting seat (4), the outer walls on both sides of the top of the mounting seat (4) are welded with threaded seats (6), and the bolt assembly (3) is threadedly connected inside the threaded seats (6).

3. The connection structure between the lifting cylinder and the frame of a dump truck according to claim 2, characterized in that: Support plates (7) are welded to the outer walls on both sides of the top of the mounting seat (4), and a mounting hole (8) is opened on the outer wall of one side of the support plate (7).

4. The connection structure between the lifting cylinder and the frame of a dump truck according to claim 2, characterized in that: Two mounting grooves (9) are provided on an outer wall of one side of the mounting seat (4), and two clamping plates (5) are slidably connected inside the mounting grooves (9).

5. The connection structure between the lifting cylinder and the frame of a dump truck according to claim 4, characterized in that: A threaded rod (11) is installed on one side of the inner wall of the installation groove (9) via a bearing, and a nut (12) is integrally formed at one end of the threaded rod (11).

6. The connection structure between the lifting cylinder and the frame of a dump truck according to claim 5, characterized in that: A rack plate (10) is integrally formed on one side of the clamping plate (5), and the rack plate (10) and the threaded rod (11) are meshed with each other.

7. The connection structure between the lifting cylinder and the frame of a dump truck according to claim 5, characterized in that: The bolt assembly (3) comprises a fixing bolt (13), wherein the fixing bolt (13) is threadedly connected to a threaded seat (6) and the inside of a nut (12), and a fixing nut (14) is threadedly connected to the bottom end of the fixing bolt (13).

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