CN216660063U - Dumper rear carriage opening mechanism and dumper - Google Patents
Dumper rear carriage opening mechanism and dumper Download PDFInfo
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- CN216660063U CN216660063U CN202121570659.2U CN202121570659U CN216660063U CN 216660063 U CN216660063 U CN 216660063U CN 202121570659 U CN202121570659 U CN 202121570659U CN 216660063 U CN216660063 U CN 216660063U
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- rear compartment
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Abstract
The utility model provides a dumper rear carriage opening mechanism which comprises a carriage and a rear carriage assembly, wherein the top of the rear carriage assembly is hinged with a middle connecting plate, the other end of the middle connecting plate is hinged with the top of the carriage, a rotary force arm is fixedly arranged on the middle connecting plate, the lower end of the rotary force arm is connected with a lifting mechanism assembly, and the lifting mechanism assembly is arranged at the rear part of the carriage; the rear part of the carriage is provided with a hook, and the rear carriage assembly is provided with a locking limiting rod matched with the hook. The dumper rear carriage opening mechanism can reduce the impact of materials on the rear carriage in the dumping process and reduce the damage of the rear carriage touching ground materials. The utility model also provides the dumper with the dumper rear compartment opening mechanism, and the dumper is convenient to use.
Description
Technical Field
The utility model relates to the field of dumper trucks, in particular to a dumper rear compartment opening mechanism and a dumper.
Background
The dump truck is a vehicle which can unload cargos by hydraulic or mechanical lifting and is also called a dump truck. The cargo compartment of the dump truck is divided into a backward tipping type and a side-compartment tipping type. At present, the door opening mode of the common dumper for loading and unloading materials in the market is a rear door, and the rear carriage of the dumper is hinged with the upper parts of the two side carriages. The opening of the rear compartment is gradually opened during the lifting process of the compartment.
Because the rear compartment is completely opened and is relatively delayed relative to the lifting of the compartment, the rear compartment is subjected to huge pressure of materials in the compartment before the rear compartment is completely opened, and the contact points of the locking mechanism of the rear compartment are two points at the lower side of the rear compartment, so that the local stress imbalance of the rear compartment is caused. During the lifting of the car, the dumped material also generates continuous impact force on the rear car, which can cause adverse effect on the rear car, so that the service life of the rear car is greatly reduced.
In addition, when the dump truck loads and unloads materials, the chassis of the truck is in a static state, the materials are continuously poured out from the rear door of the carriage along with the materials in the carriage, the materials are continuously accumulated at the tail of the carriage, and the distance between the rear carriage and the ground is smaller and smaller along with the continuous lifting of the carriage, so that the rear carriage can touch the materials, the materials can be prevented from being smoothly dumped, and the collision and damage probability of the rear carriage can be increased.
On the other hand, because the dump truck is opened in order to lock the rear compartment and ensure that the rear compartment is not opened in the running process, manual hooks are generally arranged on two sides of the compartment to fixedly lock the rear compartment. However, the manual hooks are manually opened and closed before and after the dump truck is unloaded, so that great risk exists, and if a driver forgets to open the manual hooks before unloading, a rear carriage assembly cannot be opened in the lifting process of the dump truck, so that the whole truck is tilted; when the manual hook is not closed after unloading or loading, great potential safety hazards exist in the driving process of the dump truck.
In order to solve the above problems, people are always seeking an ideal technical solution.
SUMMERY OF THE UTILITY MODEL
In order to achieve the purpose, the utility model adopts the technical scheme that: a dumper rear compartment opening mechanism comprises a compartment and a rear compartment assembly, wherein the top of the rear compartment assembly is hinged with a middle connecting plate, the other end of the middle connecting plate is hinged with the top of the compartment, a rotary force arm is fixedly arranged on the middle connecting plate, the lower end of the rotary force arm is connected with a lifting mechanism assembly, and the lifting mechanism assembly is arranged at the rear part of the compartment;
the rear part of the carriage is provided with a hook, and the rear carriage assembly is provided with a locking limiting rod matched with the hook.
Based on the above, the top of the rear compartment assembly is provided with the hinged arm, and one end of the middle connecting plate is hinged to the hinged arm through the second hinge shaft.
Based on the above, in order to tension the top of the rear box assembly, the top of the carriage is provided with a hinge seat, and the other end of the middle connecting plate is hinged with the hinge seat through a first hinge shaft; when the rear carriage assembly is in a closed state, the installation height of the first hinge shaft is greater than that of the second hinge shaft.
Based on the above, the lifting mechanism assembly comprises a hydraulic cylinder seat arranged on the carriage and a hydraulic cylinder hinged on the hydraulic cylinder seat, and a hydraulic rod of the hydraulic cylinder is hinged with the rotating force arm through a third hinge shaft.
Based on the above, in order to tension the top of the rear box assembly, the rotating force arm is obliquely fixed on the middle connecting plate towards the inner side of the carriage.
Based on the above, the hinged arm is provided with a limiting block for limiting the hinged arm to rotate around the second hinge shaft to the inner side of the carriage; the limiting block is matched with the intermediate connecting plate.
Based on the above, the length of the rotating moment arm is smaller than the length of the rear compartment assembly.
Based on the above, in order to balance the stress of the rear box assembly, two groups of hooks are symmetrically arranged at the rear part of the carriage; the outer end of the hook is an oblique side groove which is obliquely upward.
The utility model also provides a dumper, and the dumper is provided with the dumper rear compartment opening mechanism.
Compared with the prior art, the utility model has substantive characteristics and progress, in particular to the dumper rear compartment opening mechanism provided by the utility model, and the utility model has the following advantages that:
1. the hydraulic cylinder arranged at the rear part of the carriage is controlled, so that the rotating force arm is driven to drive the rear carriage assembly to open and close around the first hinge shaft, the rear carriage assembly is free from the influence of the self gravity of the rear carriage assembly and loaded goods when being prepared for unloading, the unloading efficiency and the stability and the safety of automatic material dumping are improved, and meanwhile, the use performance of the whole dumper is favorably enhanced.
2. The limit block limits the rotation of the rear compartment assembly around the second hinge shaft, so that the stroke of the lifting mechanism assembly required by the complete opening of the rear compartment assembly is shortened, and the size of the lifting mechanism assembly is reduced.
3. Through adopting rotatory arm of force structure and lifting mechanism assembly level to arrange, reduced the requirement to lifting mechanism's lifting force, guaranteed lifting mechanism's security and reduced the cost of purchasing the pneumatic cylinder, can arrange the back column and the seal box in with rotatory arm of force and lifting mechanism assembly simultaneously, improved lifting mechanism's life.
4. By adding the hook and the corresponding locking limiting rod; and the relative positions of the rear compartment assembly, the first hinge shaft and the second hinge shaft are reasonably arranged, so that when the lifting mechanism assembly drives the rotary force arm to push the middle connecting plate to move, the rear compartment assembly is driven to move upwards along the edge of the compartment to complete locking and limiting rod unhooking, and then the rear compartment assembly is limited by the limiting block to rotate around the second hinge shaft, so that the rear compartment assembly is opened along the first hinge shaft in a rotating manner. The automatic locking and unlocking of the rear compartment assembly locking limiting rod and the hook are completed through the structure.
Drawings
Fig. 1 is a structural schematic diagram of a dumper rear compartment opening mechanism provided by the utility model in a closed state.
Fig. 2 is a schematic structural view of the opening mechanism of the rear compartment of the dump truck provided by the utility model in the opening device.
Fig. 3 is a schematic view of the connection state of the middle connecting plate in the dumper rear compartment opening mechanism provided by the utility model.
In the figure: 1. a carriage, 2, a hydraulic cylinder seat; 3. a lifting mechanism assembly; 4. a hydraulic lever; 5. rotating the force arm; 6. a first hinge shaft; 7. an intermediate connection plate; 8. a hinged seat; 9. an articulated arm; 10. a second hinge shaft; 11. a rear compartment assembly; 12. a third hinge shaft; 13. locking the limiting rod; 14. hooking; 15. and a limiting block.
Detailed Description
The technical solution of the present invention is further described in detail by the following embodiments.
Example 1
The present embodiment provides a rear compartment opening mechanism for a dump truck, as shown in fig. 1, 2, and 3, including a compartment 1 and a rear compartment assembly 11.
The top of the rear compartment assembly 11 is hinged with a middle connecting plate 7, and the other end of the middle connecting plate 7 is hinged with the top of the compartment 1. The middle connecting plate 7 is fixedly provided with a rotary force arm 5, the lower end of the rotary force arm 5 is connected with a lifting mechanism assembly 3, and the lifting mechanism assembly 3 is arranged at the rear part of the carriage 1.
A hook 14 is arranged at the rear part of the carriage 1, and a locking limiting rod 13 matched with the hook 14 is arranged on the rear carriage assembly 11.
Specifically, the hinge arm 9 is arranged on the top of the rear compartment assembly 11, and one end of the intermediate connecting plate 7 is hinged with the hinge arm 9 through a second hinge shaft 10.
In order to be able to tighten the roof of the rear box assembly, the top of the car 1 is provided with a hinged seat 8.
The other end of the middle connecting plate 7 is hinged with the hinge base 8 through a first hinge shaft 6. When the rear compartment assembly 11 is in a closed state, the installation height of the first hinge shaft 6 is greater than that of the second hinge shaft 10.
Specifically, in this embodiment, the lifting mechanism assembly 3 includes a hydraulic cylinder base 2 disposed on the car 1, and a hydraulic cylinder hinged to the hydraulic cylinder base 2, and a hydraulic rod 4 of the hydraulic cylinder is hinged to the rotating arm 5 through a third hinge shaft 12.
In order to tighten the top of the rear box assembly, the rotating arm 5 is fixed on the intermediate connecting plate 7 obliquely towards the inner side of the carriage.
In order to further tighten the top of the rear box assembly 11 after the rear box assembly is attached to the car, the hinge arm 9 is provided with a stopper 15 for restricting the hinge arm 9 from rotating about the second hinge shaft 10 toward the inside of the car.
The limiting block 15 is matched with the intermediate connecting plate 7. When the rear compartment assembly 11 is closed with the compartment 1, the plane on the inner side of the limiting block 15 is not contacted with the plane on the outer side of the middle connecting plate 7, and an acute included angle is formed between the two planes.
The length of the rotating moment arm 5 is less than the length of the rear compartment assembly 11.
In order to balance the stress of the rear box assembly 11, two groups of hooks 14 are symmetrically arranged at the rear part of the carriage 1; the outer end of the hook 14 is an oblique edge groove which is obliquely upward.
The embodiment also provides a dumper, and the dumper is provided with the dumper rear compartment opening mechanism.
Specifically, when the rear compartment opening mechanism of the dump truck provided by the embodiment is in the closed state:
as shown in fig. 1, the dump truck carriage falls with the opening; at the moment, the locking limiting rod falls into the bevel edge groove of the hook, and the locking of the rear compartment assembly in the horizontal direction is realized. At the moment, the hydraulic cylinder is completely retracted, the middle connecting plate is locked, the second hinge shaft cannot rotate around the first hinge shaft, and the locking of the rear carriage assembly in the vertical direction is realized.
When the rear compartment assembly is in a closed state, the mounting height of the first hinge shaft is greater than that of the second hinge shaft, so that the top of the rear compartment assembly can be further tensioned after the rear compartment assembly is attached to a compartment; the inner plane of the limiting block is not contacted with the outer plane of the middle connecting plate, and an acute included angle is formed between the inner plane of the limiting block and the outer plane of the middle connecting plate.
When the dumper rear compartment opening mechanism provided by the embodiment is in unhooking starting:
as shown in fig. 2, as the carriage of the dump truck is lifted, the lifting mechanism assembly pushes the middle connecting plate to rotate around the first hinge shaft through the rotating arm.
Meanwhile, the inner plane of the limiting block is not in contact with the outer plane of the middle connecting plate, so that the rear compartment assembly rotates inwards around the second hinge shaft, and the angle value is reduced until the value is reduced to zero. And then, the rear compartment assembly is driven by the articulated arm to vertically move upwards until the locking limit rod is in a unhooking critical state. After the locking limiting rod is unhooked, the rear compartment assembly rotates around the first hinge shaft under the action of the limiting block until the rear compartment assembly is completely opened.
Finally, it should be noted that the above examples are only used to illustrate the technical solutions of the present invention and not to limit the same; although the present invention has been described in detail with reference to preferred embodiments, those skilled in the art will understand that: modifications to the specific embodiments of the utility model or equivalent substitutions for parts of the technical features may be made; without departing from the spirit of the present invention, it is intended to cover all aspects of the utility model as defined by the appended claims.
Claims (9)
1. A dumper rear compartment opening mechanism comprises a compartment and a rear compartment assembly, and is characterized in that: the top of the rear compartment assembly is hinged with a middle connecting plate, the other end of the middle connecting plate is hinged with the top of the compartment, a rotary force arm is fixedly arranged on the middle connecting plate, the lower end of the rotary force arm is connected with a lifting mechanism assembly, and the lifting mechanism assembly is arranged at the rear part of the compartment;
the rear part of the carriage is provided with a hook, and the rear carriage assembly is provided with a locking limiting rod matched with the hook.
2. The dump truck rear compartment opening mechanism according to claim 1, wherein: the top of the rear compartment assembly is provided with a hinged arm, and one end of the middle connecting plate is hinged with the hinged arm through a second hinged shaft.
3. The dump truck rear compartment opening mechanism according to claim 2, wherein: the top of the carriage is provided with a hinged seat, and the other end of the middle connecting plate is hinged with the hinged seat through a first hinge shaft; when the rear carriage assembly is in a closed state, the installation height of the first hinge shaft is greater than that of the second hinge shaft.
4. The dump truck rear compartment opening mechanism according to claim 3, wherein: the lifting mechanism assembly comprises a hydraulic cylinder seat arranged on the carriage and a hydraulic cylinder hinged on the hydraulic cylinder seat, and a hydraulic rod of the hydraulic cylinder is hinged with the rotating force arm through a third hinge shaft.
5. The dumper rear compartment opening mechanism according to claim 4, wherein: the rotating force arm is obliquely fixed on the middle connecting plate towards the inner side of the carriage.
6. The dumper rear compartment opening mechanism according to claim 5, wherein: the hinged arm is provided with a limiting block for limiting the hinged arm to rotate around a second hinge shaft to the inner side of the carriage; the limiting block is matched with the intermediate connecting plate.
7. The dumper rear compartment opening mechanism according to claim 6, wherein: the length of the rotating moment arm is less than the length of the rear compartment assembly.
8. The dumper rear compartment opening mechanism according to claim 7, wherein: the rear part of the carriage is symmetrically provided with two groups of hooks, and the outer ends of the hooks are oblique side grooves which are obliquely upward.
9. A dump truck is characterized in that: the dump truck is provided with the dump truck rear compartment opening mechanism as set forth in any one of claims 1 to 8.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121570659.2U CN216660063U (en) | 2021-07-12 | 2021-07-12 | Dumper rear carriage opening mechanism and dumper |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121570659.2U CN216660063U (en) | 2021-07-12 | 2021-07-12 | Dumper rear carriage opening mechanism and dumper |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216660063U true CN216660063U (en) | 2022-06-03 |
Family
ID=81758973
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121570659.2U Active CN216660063U (en) | 2021-07-12 | 2021-07-12 | Dumper rear carriage opening mechanism and dumper |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216660063U (en) |
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2021
- 2021-07-12 CN CN202121570659.2U patent/CN216660063U/en active Active
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