Dumper overturning structure

Abstract

The invention discloses a dumper turnover structure, which belongs to the technical field of auto spare parts and comprises two positioning seats, and central shaft sleeves are fixedly mounted in the positioning seats; overturning shaft sleeves are rotationally mounted in the central shaft sleeves, and a connecting shaft sleeve is detachably and concentrically connected between the two overturning shaft sleeves in a sleeving manner; a lock cylinder assembled on the annular support in a penetrating mode is fixedly installed in the center shaft sleeve, and a lock head is fixed to one end of the lock cylinder. A screw is assembled in the central shaft sleeve through threads, and a lock control conical head is fixed to the end, facing the annular support, of the screw; a first lock hole and a second lock hole are formed in the side walls of the overturning shaft sleeve and the connecting shaft sleeve correspondingly. The lock control conical head can be driven to move towards the position where the annular support is located by rotating the screw clockwise, at the moment, the lock control conical head can abut against and push all the lock heads to be inserted into the first lock hole and the second lock hole at the same time, and therefore locking between the connecting shaft sleeve and the overturning shaft sleeve is completed; on the contrary, dismounting can be completed; the overturning shaft sleeve is fast and convenient to disassemble and assemble.

Description

Technical Field

[0001] The invention relates to the technical field of automobile accessories, in particular to a tipping structure of a dump truck. Background Art

[0002] A dump truck is a vehicle used to transport bulk materials (such as sand, ore, soil, etc.). Its core feature is the ability to dump materials by flipping the vehicle compartment during unloading. The tipping structure of a dump truck is a key component that directly affects the unloading efficiency and operational safety of the vehicle.

[0003] At present, the existing dump truck flipping structure mainly installs the flip shaft through four or five positioning seats. The overall concentricity after installation is not high, and there is a risk of vehicle tilting or rollover when flipping and unloading. Secondly, due to the frequent flipping and wear of the flip shaft, the flip shaft needs to be replaced regularly, and the flip shaft of the existing dump truck flipping structure is mainly installed by welding or riveting, which makes it inconvenient to disassemble and assemble. Summary of the invention

[0004] The technical problem to be solved by the present invention is to provide a dump truck flipping structure, which only retains two positioning seats, and the concentricity of the connecting sleeve after the two flip sleeves are sleeved will be higher; when installing it, the locking cone head can be driven to move toward the location of the annular bracket by rotating the screw rod clockwise, and at this time the locking cone head can simultaneously push all the lock heads to be inserted into lock hole one and lock hole two, thereby completing the locking between the connecting sleeve and the flip sleeve; when disassembling and replacing it, the locking cone head can be driven to move away from the location of the annular bracket by rotating the screw rod counterclockwise, and at this time all the lock heads are completely withdrawn from lock hole one and lock hole two; it is quick and convenient to disassemble and assemble the flip sleeve.

[0005] To solve the above technical problems, the technical solution of the present invention is achieved as follows:

[0006] A dump truck turning structure comprises two positioning seats, wherein a central shaft sleeve is fixedly installed inside the positioning seats; a turning shaft sleeve is rotatably installed inside the central shaft sleeve, and a connecting shaft sleeve is detachably and concentrically sleeved between the two turning shaft sleeves;

[0007] The interior of the central sleeve is hollow and is sealed by shaft covers at both ends. An annular bracket is fixedly installed inside the central sleeve. The frame wall of the annular bracket is penetrated by a plurality of lock cores distributed in a circumferential array. All lock cores face the center of the annular bracket, and a lock head is fixed at one end of the lock core away from the center of the annular bracket; the interior of the central sleeve is threadedly equipped with an axially distributed screw, and a locking cone head is fixed at one end of the screw facing the annular bracket; lock hole one and lock hole two corresponding to the position and number of the lock heads are respectively provided on the side walls of the flip sleeve and the connecting sleeve.

[0008] By adopting the above scheme, the tipping structure of the dump truck only retains two locating seats, and the concentricity of the connecting sleeve after the two tipping sleeves are sleeved will be higher; when installing it, the locking cone head can be driven to move toward the location of the annular bracket by rotating the screw rod clockwise, and at this time the locking cone head can simultaneously push all the lock heads to be inserted into the lock hole 1 and the lock hole 2, thereby completing the locking between the connecting sleeve and the tipping sleeve; when disassembling and replacing it, the locking cone head can be driven to move away from the location of the annular bracket by rotating the screw rod counterclockwise, and at this time all the lock heads are completely withdrawn from the lock hole 1 and the lock hole 2; it is quick and convenient to disassemble and assemble the tipping sleeve.

[0009] As a preferred implementation of the tipping structure of a dump truck, the locking cone head is in a cone shape; the end of the lock core facing the center of the annular bracket is a round head, which abuts against the conical surface of the locking cone head.

[0010] By adopting the above scheme, in order to reduce the wear between the lock control cone head and the lock core, the surfaces of the lock control cone head and the lock core are designed to be a conical surface and a circular surface respectively. The contact area between the two will be smaller when they collide, thereby reducing the wear between the two and extending the service life of the two.

[0011] As a preferred implementation of the tipping structure of a dump truck, the lock head is in the shape of a truncated cone; the inner walls of the first lock hole and the second lock hole are both in contact with the table surface of the lock head.

[0012] By adopting the above scheme, in order to ensure the stability of the connecting sleeve and the flip sleeve after being sleeved, the lock head is designed to be a frustum. As the lock head is continuously pushed outward, the lock head becomes tighter and tighter after being inserted into the lock hole one and the lock hole two, thereby avoiding the "activity" phenomenon between the connecting sleeve and the flip sleeve, which can greatly improve the stability and reliability of the connecting sleeve and the flip sleeve after being sleeved.

[0013] As a preferred embodiment of the dump truck flipping structure, a pin is plugged into the lock core, a slide is fixed on the end of the pin away from the lock core, the slide is slidably installed on a guide rod fixed inside the annular bracket, and the guide rod is sleeved with a spring that pushes the slide to move toward the center of the annular bracket.

[0014] By adopting the above scheme, in order to realize that each lock head can automatically withdraw from lock hole one and lock hole two during disassembly, when the lock control cone head moves away from the location of the annular bracket, the lock head is pushed by the elasticity of the spring, and all the lock cores move toward the center of the annular bracket. At this time, all the lock heads are completely withdrawn from lock hole one and lock hole two.

[0015] As a preferred embodiment of a dump truck flipping structure, a booster rotating head is fixed to one end of the screw away from the locking cone head, and the diameter of the booster rotating head is larger than the diameter of the screw; wherein a hexagonal groove is provided on the surface of the booster rotating head.

[0016] By adopting the above scheme, in order to facilitate the rotation of the screw rod, an auxiliary rotating head is added, and a hexagonal wrench is used to connect it to the inner hexagonal groove, and the screw rod can be driven to rotate by rotating the hexagonal wrench.

[0017] As a preferred embodiment of the tipping structure of a dump truck, a pull-out lubrication box is installed inside the positioning seat, and the lubrication box is located directly above the central shaft sleeve; solid lubricating oil is placed in the lubrication box, and a plurality of evenly distributed oil leakage holes are opened through the bottom of the lubrication box; a hollow groove is opened through the top of the central shaft sleeve;

[0018] Among them, the diameter of the oil leakage hole is 2-4mm;

[0019] The hollow grooves are opened circumferentially above the center sleeve and are arranged in multiple locations along the axial linear array of the center sleeve;

[0020] Among them, oil baffles fixed on the outer wall of the central shaft sleeve are arranged on the left and right sides of the hollow groove, and the oil baffles are arranged in an inward-facing eight-shaped tilt.

[0021] By adopting the above scheme, in order to ensure that the flip sleeve is always in a lubricated state inside the center sleeve, solid lubricating oil is placed in the lubrication box. The solid lubricating oil slowly falls from the tiny oil leakage hole, and then the lubricating oil flows evenly to the surface of the flip sleeve through the hollow groove, thereby ensuring that the flip sleeve is always in a lubricated state inside the center sleeve.

[0022] After adopting the above technical solution, the beneficial effects of the present invention are:

[0023] 1. The tipping structure of the dump truck only retains two positioning seats, and the concentricity of the connecting sleeve after the two tipping sleeves are sleeved will be higher; when installing, the locking cone head can be driven to move toward the location of the annular bracket by rotating the screw rod clockwise, and at this time, the locking cone head can simultaneously push all the locks to be inserted into the lock hole 1 and the lock hole 2, thereby completing the locking between the connecting sleeve and the tipping sleeve; when disassembling and replacing, the locking cone head can be driven to move away from the location of the annular bracket by rotating the screw rod counterclockwise, and at this time, all the locks are completely withdrawn from the lock hole 1 and the lock hole 2; it is quick and convenient to disassemble and assemble the tipping sleeve;

[0024] 2. In order to reduce the wear between the lock control cone head and the lock core, the surfaces of the lock control cone head and the lock core are designed to be conical and round respectively. The contact area between the two will be smaller when they collide, thereby reducing the wear between the two and extending the service life of the two.

[0025] 3. In order to ensure the stability of the connection between the connecting sleeve and the flip sleeve after the sleeve connection, the lock head is designed to be a frustum. As the lock head is continuously pushed outward, the lock head becomes tighter and tighter after being inserted into the lock hole 1 and the lock hole 2, thereby avoiding the "activity" phenomenon between the connecting sleeve and the flip sleeve, which can greatly improve the stability and reliability of the connection between the connecting sleeve and the flip sleeve after the sleeve connection;

[0026] 4. In order to realize that each lock head can automatically withdraw from the lock hole 1 and the lock hole 2 during disassembly, when the lock control cone head moves away from the position where the annular bracket is located, the lock head is pushed by the elasticity of the spring, and all the lock cores move toward the center of the circle of the annular bracket. At this time, all the lock heads are completely withdrawn from the lock hole 1 and the lock hole 2;

[0027] 5. In order to facilitate the rotation of the screw, an auxiliary rotating head is added, and a hexagonal wrench is used to connect it to the inner hexagonal groove. The screw can be driven to rotate by rotating the hexagonal wrench;

[0028] 6. In order to ensure that the flip sleeve is always lubricated in the center sleeve, solid lubricant is placed in the lubrication box. The solid lubricant slowly falls from the tiny oil leakage hole, and then the lubricant flows evenly to the surface of the flip sleeve through the hollow groove, thereby ensuring that the flip sleeve is always lubricated in the center sleeve. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0030] Figure 1 It is a three-dimensional structural diagram of the present invention;

[0031] Figure 2 for Figure 1 A three-dimensional structural diagram of the middle connecting sleeve after the two flip sleeves are connected;

[0032] Figure 3 for Figure 2 The three-dimensional structure diagram of the middle flip sleeve after installation;

[0033] Figure 4 For display Figure 3 A three-dimensional diagram of the internal structure;

[0034] Figure 5 for Figure 4 The three-dimensional structure of each lock on the middle ring bracket after installation Figure 1 ;

[0035] Figure 6 for Figure 4 The three-dimensional structure of each lock on the middle ring bracket after installation Figure 2 ;

[0036] Figure 7 for Figure 4 The three-dimensional structure diagram of the middle locking cone head;

[0037] Figure 8 For display Figure 2 The internal state diagram of the middle lock head after the connecting sleeve and the flip sleeve are installed;

[0038] Fig. 9 for Figure 2 A three-dimensional structural diagram of the middle flip sleeve after disassembly;

[0039] Fig.10 For display Fig. 9 A three-dimensional diagram of the internal structure;

[0040] Fig.11 for Fig.10 The three-dimensional structure of each lock on the middle ring bracket after disassembly Figure 1 ;

[0041] Fig.12 for Fig.10 The three-dimensional structure of each lock on the middle ring bracket after disassembly Figure 2 ;

[0042] Fig.13 For display Figure 2 The internal state diagram of the middle lock head after the connecting sleeve and the flip sleeve are disassembled;

[0043] Fig.14 for Figure 1 A three-dimensional structural diagram of the middle positioning seat;

[0044] Fig.15 For display Fig.14 A three-dimensional diagram of the internal structure;

[0045] Fig.16 for Fig.15 The three-dimensional structure diagram of the middle lubrication box;

[0046] Fig.17 for Fig.15 The three-dimensional structure diagram of the center sleeve;

[0047] Markings in the figure: 1-positioning seat; 2-center sleeve; 3-flip sleeve; 4-connecting sleeve; 5-shaft cover; 6-ring bracket; 7-lock cylinder; 8-lock head; 9-screw; 10-locking cone head; 11-locking hole one; 12-locking hole two; 13-pin shaft; 14-slide; 15-guide rod; 16-spring; 17-boosting rotating head; 18-lubrication box; 19-oil leakage hole; 20-hollow groove; 21-oil baffle plate. DETAILED DESCRIPTION

[0048] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0049] like Figures 1 to 14 As shown, a dump truck flipping structure is used in the compartment of the dump truck, and comprises two positioning seats 1 fixedly mounted on the dump truck compartment body, a central sleeve 2 is fixedly mounted inside the positioning seat 1; a flip sleeve 3 fixedly connected to the dump truck compartment door is rotatably mounted inside the central sleeve 2, and a connecting sleeve 4 is detachably and concentrically sleeved between the two flip sleeves 3; the interior of the central sleeve 2 is hollow and blocked by shaft covers 5 at both ends, an annular bracket 6 is fixedly mounted inside the central sleeve 2, a plurality of lock cores 7 distributed in a circumferential array are penetrated and mounted on the wall of the annular bracket 6, all of the lock cores 7 are facing the center of the annular bracket 6, and a lock head 8 is fixed on the end of the lock core 7 away from the center of the annular bracket 6; an axially distributed screw rod 9 is threadedly mounted inside the central sleeve 2, and a locking cone head 10 is fixed on the end of the screw rod 9 facing the annular bracket 6; a lock hole 11 and a lock hole 2 12 corresponding to the position and number of the lock head 8 are respectively opened on the side walls of the flip sleeve 3 and the connecting sleeve 4. The tipping structure of the dump truck only retains two positioning seats 1, and the concentricity of the connecting sleeve 4 after the two tipping sleeves 3 are sleeved together will be higher; when installing it, the locking cone head 10 can be driven to move toward the location of the annular bracket 6 by rotating the screw rod 9 clockwise, and at this time the locking cone head 10 can simultaneously push all the locking heads 8 to be inserted into the locking hole 11 and the locking hole 2 12, thereby completing the locking between the connecting sleeve 4 and the tipping sleeve 3; when disassembling and replacing it, the locking cone head 10 can be driven to move away from the location of the annular bracket 6 by rotating the screw rod 9 counterclockwise, and at this time all the locking heads 8 are completely withdrawn from the locking hole 11 and the locking hole 2 12; it is quick and convenient to disassemble and assemble the tipping sleeve 3.

[0050] like Figures 5 to 7 , Figure 11 to Figure 12As shown, the locking cone head 10 is in a cone shape; the end of the lock core 7 facing the center of the annular bracket 6 is a round head, which contacts the conical surface of the locking cone head 10. In order to reduce the wear between the locking cone head 10 and the lock core 7, the surfaces of the locking cone head 10 and the lock core 7 are designed to be conical surfaces and round surfaces respectively, so that the contact area between the two will be smaller when they contact each other, thereby reducing the wear between the two and extending the service life of the two.

[0051] like Figures 5 and 6 , Figure 11 to Figure 12 As shown, the lock head 8 is in a truncated cone shape; the inner walls of the first lock hole 11 and the second lock hole 12 are both in contact with the table surface of the lock head 8. In order to ensure the stability of the connection sleeve 4 and the flip sleeve 3 after being sleeved, the lock head 8 is designed to be in a truncated cone shape. As the lock head 8 is continuously pushed outward, the lock head 8 is inserted into the first lock hole 11 and the second lock hole 12 and becomes tighter and tighter, thereby avoiding the "movement" phenomenon between the connection sleeve 4 and the flip sleeve 3, which can greatly improve the stability and reliability of the connection sleeve 4 and the flip sleeve 3 after being sleeved.

[0052] like Figure 6 , Fig.12 As shown, the lock core 7 is plugged with a pin shaft 13, and a slide plate 14 is fixed to one end of the pin shaft 13 away from the lock core 7. The slide plate 14 is slidably mounted on a guide rod 15 fixed inside the annular bracket 6, and a spring 16 is sleeved on the guide rod 15 to push the slide plate 14 to move toward the center of the annular bracket 6. In order to realize that each lock head 8 can automatically withdraw from the lock hole 1 11 and the lock hole 2 12 during disassembly, when the lock control cone head 10 moves away from the annular bracket 6, the lock head 8 is pushed by the elasticity of the spring 16, and all the lock cores 7 move to the center of the annular bracket 6, and at this time, all the lock heads 8 are completely withdrawn from the lock hole 1 11 and the lock hole 2 12.

[0053] like Figure 7 As shown, a boosting rotating head 17 is fixed to one end of the screw rod 9 away from the locking cone head 10, and the diameter of the boosting rotating head 17 is larger than the diameter of the screw rod 9; wherein, a hexagonal groove is provided on the surface of the boosting rotating head 17. In order to facilitate the rotation of the screw rod 9, the boosting rotating head 17 is added, and a hexagonal wrench is used to dock in the hexagonal groove, and the screw rod 9 can be driven to rotate by rotating the hexagonal wrench.

[0054] like Figures 14 to 17As shown, a pull-out lubrication box 18 is installed inside the positioning seat 1, and the lubrication box 18 is located directly above the center sleeve 2; solid lubricating oil is placed in the lubrication box 18, and a plurality of evenly distributed oil leakage holes 19 are opened through the bottom of the lubrication box 18; a hollow groove 20 is opened through the top of the center sleeve 2; wherein the diameter of the oil leakage hole 19 is 2-4 mm; wherein the hollow groove 20 is opened circumferentially above the center sleeve 2, and there are multiple locations along the axial linear array of the center sleeve 2; wherein the left and right sides of the hollow groove 20 are provided with oil baffles 21 fixed on the outer wall of the center sleeve 2, and the oil baffles 21 are arranged in an inward-splayed tilted manner. In order to ensure that the flip sleeve 3 is always lubricated in the center sleeve 2, solid lubricating oil is placed in the lubrication box 18, and the solid lubricating oil slowly falls from the tiny oil leakage holes 19, and then the lubricating oil flows evenly into the surface of the flip sleeve 3 through the hollow groove 20, thereby ensuring that the flip sleeve 3 is always lubricated in the center sleeve 2.

[0055] Working principle of the present invention:

[0056] When installing the dump truck flip structure, a hexagonal wrench is used to dock in the inner hexagonal groove. By rotating the hexagonal wrench to drive the screw 9 to rotate clockwise, the locking cone head 10 can be driven to move toward the location of the annular bracket 6. At this time, the locking cone head 10 can simultaneously push all the lock heads 8 to be inserted into the lock hole 11 and the lock hole 2 12. Figure 8 As shown, the locking between the connecting sleeve 4 and the flip sleeve 3 is completed, and finally the shaft cover 5 is sealed at both ends of the flip sleeve 3 to complete the installation of the dump truck flip structure.

[0057] When the flip sleeve 3 is worn and needs to be disassembled and replaced, the shaft covers 5 at both ends of the flip sleeve 3 are removed and connected to the inner hexagonal groove using a hexagonal wrench. By rotating the hexagonal wrench to drive the screw 9 to rotate counterclockwise, the locking cone head 10 can be driven to move away from the annular bracket 6. At this time, all the lock heads 8 are completely withdrawn from the lock hole 11 and the lock hole 2 12. Fig.13 As shown, the disassembly of the flip sleeve 3 can be completed.

[0058] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A dump truck tipping structure, comprising two positioning seats (1), wherein a central shaft sleeve (2) is fixedly installed inside the positioning seat (1); a tipping shaft sleeve (3) is rotatably installed inside the central shaft sleeve (2), and a connecting shaft sleeve (4) is detachably and concentrically sleeved between the two tipping shaft sleeves (3); Features: The interior of the central sleeve (2) is hollow and is sealed at both ends by shaft covers (5); an annular bracket (6) is fixedly installed inside the central sleeve (2); a plurality of lock cores (7) distributed in a circumferential array are installed on the wall of the annular bracket (6); all the lock cores (7) are oriented toward the center of the annular bracket (6); a lock head (8) is fixed at one end of the lock core (7) away from the center of the annular bracket (6); an axially distributed screw rod (9) is threadedly installed inside the central sleeve (2); a locking cone head (10) is fixed at one end of the screw rod (9) facing the annular bracket (6); a lock hole 1 (11) and a lock hole 2 (12) are respectively provided on the side walls of the flip sleeve (3) and the connecting sleeve (4), which are corresponding to the position and number of the lock heads (8); When the screw rod (9) is rotated clockwise, the locking cone head (10) can be driven to move toward the location of the annular bracket (6), and at this time, the locking cone head (10) can simultaneously push all the lock heads (8) to be inserted into the lock hole 1 (11) and the lock hole 2 (12); when the screw rod (9) is rotated counterclockwise, the locking cone head (10) can be driven to move away from the location of the annular bracket (6), and at this time, all the lock heads (8) are completely withdrawn from the lock hole 1 (11) and the lock hole 2 (12).

2. The tipping structure of a dump truck according to claim 1, characterized in that: The locking cone head (10) is in the shape of a cone; the end of the lock core (7) facing the center of the annular bracket (6) is a round head, which abuts against the conical surface of the locking cone head (10).

3. The tipping structure of a dump truck according to claim 2, characterized in that: The lock head (8) is in the shape of a truncated cone; the inner walls of the first lock hole (11) and the second lock hole (12) are both in contact with the surface of the lock head (8).

4. The tipping structure of a dump truck according to claim 3, characterized in that: A pin shaft (13) is inserted and assembled on the lock core (7), a slide plate (14) is fixed to one end of the pin shaft (13) away from the lock core (7), the slide plate (14) is slidably mounted on a guide rod (15) fixed inside the annular bracket (6), and a spring (16) is sleeved on the guide rod (15) for pushing the slide plate (14) to move toward the center of the annular bracket (6).

5. The tipping structure of a dump truck according to claim 4, characterized in that: A boosting rotating head (17) is fixed to one end of the screw rod (9) away from the locking cone head (10), and the diameter of the boosting rotating head (17) is greater than the diameter of the screw rod (9).

6. The tipping structure of a dump truck according to claim 5, characterized in that: The surface of the boosting rotating head (17) is provided with a hexagonal groove.

7. The tipping structure of a dump truck according to any one of claims 1 to 6, characterized in that: A pull-out lubrication box (18) is installed inside the positioning seat (1), and the lubrication box (18) is located directly above the central shaft sleeve (2); solid lubricating oil is placed in the lubrication box (18), and a plurality of evenly distributed oil leakage holes (19) are provided through the bottom of the lubrication box (18); and a hollow groove (20) is provided through the top of the central shaft sleeve (2).

8. The tipping structure of a dump truck according to claim 7, characterized in that: The diameter of the oil leakage hole (19) is 2-4 mm.

9. The tipping structure of a dump truck according to claim 8, characterized in that: The hollow grooves (20) are circumferentially opened above the central sleeve (2) and are arranged in a plurality of locations in an axial linear array along the central sleeve (2).

10. The tipping structure of a dump truck according to claim 9, characterized in that: The left and right sides of the hollow groove (20) are provided with oil baffle plates (21) fixed on the outer side wall of the central shaft sleeve (2), and the oil baffle plates (21) are arranged in an inward-facing, inverted manner.

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