Car dumper car pressing device guiding device convenient to maintain

Abstract

The utility model discloses a dumper pressing device guiding device convenient to maintain, which comprises a pressing rod, the action stroke of the pressing rod is controlled by a hydraulic machine, the pressing end of the pressing rod contacted with a carriage is provided with a pressing device guiding device, and the pressing device guiding device comprises a shell fixed on the pressing rod. Guide columns with the upper portions penetrating through the top of the shell are vertically arranged on the two sides in the shell in a sliding mode, a bottom plate is fixed to the bottoms of the two guide columns and abuts against the bottom of the inner side of the shell, and the outer sides of the guide columns are sleeved with spiral springs with one ends abutting against the top of the inner side of the shell and the other ends abutting against the bottom plate. An ejector rod which vertically penetrates through the bottom of the shell and extends to the outer side of the pressing face of the vehicle pressing rod is fixed to the bottom of the bottom plate; by means of the receding groove, after the car pressing rod completely presses the carriage, the pressing disc can be contracted to the pressing face at the bottom of the car pressing rod, and unnecessary extrusion to the guiding device and damage to the carriage are avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of car clamping devices of a dumper, in particular to a guiding device for a car clamping device of a dumper which is convenient for maintenance. Background Art

[0002] A car clamping device is a pressing and positioning device used to press the carriage in a dumper; the car clamping device is a very important part of the dumper, and its main function is to ensure the stability of the dumper during operation. The dumper is used to transport a large amount of materials, such as bricks, stones, earth and rock, coal, etc. During the driving process of the dumper, if there is no car clamping device, the transported materials will slip, thereby reducing the stability and transportation efficiency of the dumper. The function of the car clamping device is to apply mechanical pressure to keep the transported materials in a relatively fixed position, thereby improving the stability of the dumper and ensuring the working efficiency.

[0003] In the prior art, generally multiple car clamping devices are provided on the dumper, and each car clamping device unit must ensure that it is firmly pressed against the carriage during operation, otherwise local slippage between the carriage and the car clamping device will occur during the tipping process, which will further cause the carriage to be distorted and damaged to varying degrees. The traditional car clamping device generally controls the pressing stroke through a hydraulic press that controls the car clamping rod, that is, as long as the pressing strokes of multiple car clamping rods reach the preset average value, the control end will determine that it has been pressed in place; however, errors and misjudgments may also occur in this way. In actual situations, due to the micro-deformation or local depression in the engineering carriage from time to time, the car clamping rod at this position is very likely to be not pressed in place. Once this situation occurs, it is easy to have the problem of local slippage between the carriage and the car clamping device mentioned above, which will further cause the carriage to be distorted and damaged to varying degrees; therefore, it is necessary to design a guiding device for the car clamping device to avoid the occurrence of the above situation. Summary of the Utility Model

[0004] The purpose of this part is to outline some aspects of the embodiments of the utility model and briefly introduce some preferred embodiments. Simplifications or omissions may be made in this part, as well as in the abstract and the title of the utility model of this application, to avoid obscuring the purpose of this part, the abstract and the title of the utility model, and such simplifications or omissions shall not be used to limit the scope of the utility model.

[0005] Therefore, the purpose of the utility model is to provide a guiding device for a car clamping device of a dumper which is convenient for maintenance, so as to solve the problems in the prior art that errors and misjudgments may occur when the car clamping device of the dumper is used, resulting in local slippage between the carriage and the car clamping device, and causing the carriage to be distorted and damaged to varying degrees.

[0006] To achieve the above object, the present utility model provides the following technical solution: A car pressing device guiding device for a dumper that is convenient for maintenance, which includes a car pressing rod whose action stroke is controlled by a hydraulic press. A car pressing device guiding device is provided at the pressing end of the car pressing rod that contacts the carriage. The car pressing device guiding device includes a housing fixed to the car pressing rod. Inside the housing, guide columns that slide vertically on both sides and penetrate through the top of the housing at the upper part are provided. A bottom plate is fixed to the bottoms of the two guide columns, and the bottom plate abuts against the inner bottom of the housing. A spiral spring is sleeved outside the guide columns, with one end abutting against the inner top of the housing and the other end abutting against the bottom plate. A top rod is fixed to the bottom of the bottom plate and vertically penetrates through the bottom of the housing and extends to the outside of the pressing surface of the car pressing rod. A touch block is provided at the center of the upper end of the bottom plate. A position switch corresponding vertically to the touch block is provided at the inner top of the housing;

[0007] Among them, the position switch is signal-connected to the total control unit of the dumper.

[0008] As a preferred solution of a car pressing device guiding device for a dumper that is convenient for maintenance according to the present utility model, wherein, first sealing shafts respectively sleeved on the two guide columns are further fixed to both sides of the top of the housing, and a second sealing shaft sleeved on the top rod is fixed to the bottom of the housing.

[0009] As a preferred solution of a car pressing device guiding device for a dumper that is convenient for maintenance according to the present utility model, wherein, a pressing disc with a diameter larger than that of the top rod is further fixed to the bottom of the top rod.

[0010] As a preferred solution of a car pressing device guiding device for a dumper that is convenient for maintenance according to the present utility model, wherein, a return groove corresponding to the pressing disc is further provided at the bottom of the pressing surface of the car pressing rod.

[0011] As a preferred solution of a car pressing device guiding device for a dumper that is convenient for maintenance according to the present utility model, wherein, a top plate is fixed to the tops of the two guide columns, and a warning light is provided at the upper end of the top plate.

[0012] Compared with the prior art, the beneficial effects of the present utility model are: For this car pressing device guiding device for a dumper that is convenient for maintenance, when the hydraulic press controls the car pressing rod to press against the periphery of the carriage, the top rod and the pressing disc at the bottom of its pressing surface will first abut against the carriage. As the pressing progresses slowly, the guide column will drive the top rod to rise stably until the touch block completely abuts and activates the position switch. At this time, the pressing disc has retracted into the return groove and the car pressing rod has completely pressed against the carriage. After receiving the signal from the position switch, the control unit will promptly stop the hydraulic press controlling the car pressing rod, thus effectively avoiding the errors and misjudgments that may occur when the traditional car pressing device presses the car, and further preventing comprehensive problems such as local slippage between the carriage and the car pressing device, which is beneficial for targeted maintenance in the later stage and makes the car pressing device more stable and reliable during use. Brief Description of the Drawings

[0013] Figure 1 This is a schematic diagram of the overall cooperation structure of the present utility model;

[0014] Figure 2 This is a schematic diagram of the internal structure of the guiding device of the present utility model;

[0015] Figure 3 This is a schematic diagram of the external structure of the guiding device of the present utility model.

[0016] In the figure: 100, car pressing rod; 110, retracting groove; 200, outer shell; 210, guiding column; 2101, first sealing shaft; 220, bottom plate; 230, spiral spring; 240, ejector rod; 2401, pressing plate; 2402, second sealing shaft; 250, contact block; 260, in-place switch; 270, top plate; 280, warning light. Detailed Embodiment

[0017] In order to make the above objects, features, and advantages of the present utility model more obvious and understandable, the following will describe in detail the specific embodiments of the present utility model with reference to the accompanying drawings.

[0018] Secondly, the present utility model will be described in detail in conjunction with the schematic diagrams. When detailing the embodiments of the present utility model, for the convenience of description, the cross-sectional views showing the device structure will be enlarged locally in a non-general proportion, and the schematic diagrams are only examples and should not limit the scope of protection of the present utility model herein. In addition, in actual production, three-dimensional spatial dimensions including length, width, and depth should be included.

[0019] In order to make the purpose, technical solution, and advantages of the present utility model clearer, the following will further describe in detail the embodiments of the present utility model with reference to the accompanying drawings.

[0020] Figures 1 - 3 Shown is a schematic diagram of the entire structure of a car tipping machine car pressing device guiding device that is convenient for maintenance of the present utility model. Please refer to Figures 1 - 3, A car body pressing device guiding device for a dumper that is convenient for maintenance in this embodiment includes a pressing rod 100 whose action stroke is controlled by a hydraulic press. A car body pressing device guiding device is provided at the pressing end of the pressing rod 100 that contacts the carriage. The car body pressing device guiding device includes a housing 200 fixed to the pressing rod 100. Guide columns 210 that vertically slide on both sides inside the housing 200 and penetrate through the top of the housing 200 at the upper part are provided. A bottom plate 220 is fixed to the bottoms of the two guide columns 210, and the bottom plate 220 abuts against the inner bottom of the housing 200. A spiral spring 230 whose one end abuts against the inner top of the housing 200 and the other end abuts against the bottom plate 220 is sleeved outside the guide column 210. A push rod 240 that vertically penetrates through the bottom of the housing 200 and extends to the outside of the pressing surface of the pressing rod 100 is fixed to the bottom of the bottom plate 220. A touch block 250 is provided at the center of the upper end of the bottom plate 220. A position switch 260 that is vertically corresponding to the touch block 250 is provided at the inner top of the housing 200. Among them, the signal of the position switch 260 is connected to the total control unit of the dumper.

[0021] Furthermore, first sealing shafts 2101 sleeved on the two guide columns 210 respectively are fixed to both sides of the top of the housing 200, and a second sealing shaft 2402 sleeved on the push rod 240 is fixed to the bottom of the housing 200. By providing the first sealing shaft 2101 and the second sealing shaft 2402, it can prevent external dust from entering the inside of the housing 200 from the gaps at the intersections of the guide column 210 and the push rod 240 with the housing 200, thus causing internal pollution and affecting the use.

[0022] Furthermore, a pressing disc 2401 with a diameter larger than that of the push rod 240 is fixed to the bottom of the push rod 240. By providing a pressing disc 2401 with a larger diameter at the bottom of the push rod 240, the contact area between the push rod 240 and the carriage can be effectively increased, thereby improving the guiding accuracy and the effectiveness of contacting the carriage.

[0023] Furthermore, a yielding groove 110 corresponding to the pressing disc 2401 is also provided at the bottom of the pressing surface of the pressing rod 100. By providing the yielding groove 110, after the pressing rod 100 completely presses the carriage, the pressing disc 2401 can contract to the pressing surface at the bottom of the pressing rod 100, avoiding unnecessary extrusion of the guiding device and damage to the carriage.

[0024] In this embodiment, more specifically, when the hydraulic press controls the pressing rod 100 to press against the periphery of the carriage, the ejector rod 240 and the pressing disc 2401 at the bottom of the pressing surface will first abut against the carriage. As the pressing progresses slowly, the guide column 210 will drive the ejector rod 240 to rise steadily until the contact block 250 completely abuts and activates the limit switch 260. At this time, the pressing disc 2401 has retracted into the recessed groove 110, and the pressing rod 100 is completely pressed against the carriage. After receiving the signal from the limit switch 260, the control unit will promptly stop controlling the hydraulic press of the pressing rod 100, thus effectively avoiding the errors and misjudgments that may occur during pressing by traditional car presses, and further preventing comprehensive problems such as partial slippage between the carriage and the car press, making the car press more stable and reliable during use.

[0025] To further improve the usability of this guiding device, here, a top plate 270 is fixed to the tops of the two guide columns 210, and a warning light 280 is provided at the upper end of the top plate 270. For example, before the pressing rod 100 is completely pressed against the carriage, the warning light 280 will display yellow. When the pressing rod 100 is completely pressed against the carriage, the warning light 280 will display green. And when a certain pressing rod 100 fails to press against the carriage beyond the specified time, the control unit will analyze or determine that there may be a malfunction in the hydraulic device, etc., enabling on-site workers to more intuitively understand the possible problems and real-time conditions of the car press corresponding to the guiding device, which is simple and user-friendly.

[0026] In summary, for a car press guiding device of a dumper that is convenient for maintenance in this embodiment, when the hydraulic press controls the pressing rod 100 to press against the periphery of the carriage, the ejector rod 240 and the pressing disc 2401 at the bottom of the pressing surface will first abut against the carriage. As the pressing progresses slowly, the guide column 210 will drive the ejector rod 240 to rise steadily until the contact block 250 completely abuts and activates the limit switch 260. At this time, the pressing disc 2401 has retracted into the recessed groove 110, and the pressing rod 100 is completely pressed against the carriage. After receiving the signal from the limit switch 260, the control unit will promptly stop controlling the hydraulic press of the pressing rod 100, thus effectively avoiding the errors and misjudgments that may occur during pressing by traditional car presses..

[0027] Although the present invention has been described above with reference to the embodiments, various improvements can be made to it and components therein can be replaced with equivalents without departing from the scope of the present invention. In particular, as long as there is no structural conflict, the various features in the disclosed embodiments of the present invention can be combined with each other in any way. The reason for not exhaustively describing the situations of these combinations in this specification is only to save space and resources. Therefore, the present invention is not limited to the specific embodiments disclosed in the text, but includes all technical solutions falling within the scope of the claims.

Claims

1. A guiding device for the car clamping device of a dumper, which is characterized in that It includes a car pressing rod (100) whose action stroke is controlled by a hydraulic press. A car pressing device guiding means is provided at the pressing end of the car pressing rod (100) that contacts the carriage. The car pressing device guiding means includes a housing (200) fixed to the car pressing rod (100). Guide columns (210) that are vertically slidable on both sides inside the housing (200) and penetrate through the top of the housing (200) at the upper part are provided. A bottom plate (220) is fixed to the bottoms of the two guide columns (210), and the bottom plate (220) abuts against the inner bottom of the housing (200). A spiral spring (230) whose one end abuts against the inner top of the housing (200) and the other end abuts against the bottom plate (220) is sleeved outside the guide column (210). A ejector rod (240) that vertically penetrates through the bottom of the housing (200) and extends to the outside of the pressing surface of the car pressing rod (100) is fixed to the bottom of the bottom plate (220). A touch block (250) is provided at the center of the upper end of the bottom plate (220). A position switch (260) that is vertically corresponding to the touch block (250) is provided at the inner top of the housing (200). Among them, the position switch (260) is signal-connected to the total control unit of the dumper.

2. The guiding device for the car clamping device of the dumper convenient for maintenance according to claim 1, characterized in that: First sealing shafts (2101) that are respectively sleeved on the two guide columns (210) are further fixed to both sides of the top of the housing (200). A second sealing shaft (2402) that is sleeved on the ejector rod (240) is fixed to the bottom of the housing (200).

3. The guiding device for the car clamping device of the dumper, which is convenient for maintenance according to claim 1, is characterized in that: A pressing disc (2401) whose diameter is larger than that of the ejector rod (240) is further fixed to the bottom of the ejector rod (240).

4. A guiding device for a car clamping device of a dumper, which is convenient for maintenance, as claimed in claim 1, characterized in that: A return groove (110) corresponding to the pressing disc (2401) is further provided at the bottom of the pressing surface of the car pressing rod (100).

5. The guiding device of the car clamping device of the dumper for convenient maintenance according to claim 1, characterized in that: A top plate (270) is fixed to the tops of the two guide columns (210), and a warning light (280) is provided at the upper end of the top plate (270).

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