Adjustable telescopic loading port pull rod for automatic coal sampling machine of automobile

Abstract

The utility model provides a kind of adjustable telescopic material discharging port pull rod for automobile coal automatic sampling machine, belong to sampling machine discharging technical field, including stem and adjusting rod, stem and adjusting rod are coaxial and set, stem and adjusting rod are connected by screw thread telescopic mechanism cooperation, so that adjusting rod can be telescopic and moved along stem axial direction, to realize the adjustment of pull rod total length;The utility model can be through the telescopic cooperation of adjusting rod and stem, so that pull rod overall realizes the function of adjustable length, without like past to replace different specifications pull rod, only through telescopic rotation can quickly adapt cylinder stroke and material discharging port action requirement, improve equipment operating efficiency, reduce production cost.

Description

Technical Field

[0001] This utility model relates to the field of sampling machine feeding technology, specifically to an adjustable telescopic feeding port pull rod for an automatic coal sampling machine for automobiles. Background Technology

[0002] In automated sampling operations in the steel industry, automatic coal sampling machines are crucial for ensuring the accuracy of material sampling. The discharge port, as a core component for material delivery, directly determines the sampling quality based on its position and condition. Currently, the discharge structure of the sampling machine's discharge port relies on a hydraulic cylinder and two fixed-length levers: the hydraulic cylinder's telescopic end rests on a horizontal steel structure, with levers hinged to both ends of the steel structure. The lower ends of the levers are then hinged to both sides of the discharge port baffle. When the hydraulic cylinder is activated and its telescopic end extends upwards, it lifts the steel structure and levers, which in turn pull the baffle upwards via the levers to complete the material discharge.

[0003] However, the density and viscosity of hydraulic oil are easily affected by ambient temperature, resulting in significant differences in operating conditions across different seasons. In winter, at low temperatures, the viscosity of the oil increases sharply, its fluidity decreases, and the effective stroke of the cylinder's extension and retraction ends is shortened. This can lead to the discharge port not being able to close completely, making material leakage more likely.

[0004] However, if the length of the pull rod is fixed and the discharge port cannot be completely closed, a longer pull rod needs to be replaced to compensate for the shortened stroke. Since there are many discharge ports, there are also many pull rods that can be used. Replacing the pull rods takes a long time, and the specially made long pull rods will also incur additional manufacturing costs, which reduces the operating efficiency of the equipment and increases the production cost. Utility Model Content

[0005] In view of this, the present invention provides an adjustable telescopic discharge port pull rod for an automatic coal sampling machine for automobiles. Through the telescopic cooperation of the adjusting rod and the rod body, the length of the pull rod as a whole can be adjusted. Unlike in the past, there is no need to replace different specifications of pull rods. The cylinder stroke and discharge port action requirements can be quickly adapted by simply rotating and telescopically extending the rod, thereby improving the operating efficiency of the equipment and reducing the production cost.

[0006] To solve the above-mentioned technical problems, this utility model provides an adjustable telescopic discharge port pull rod for an automatic coal sampling machine for automobiles, including a rod body and an adjusting rod. The end of the rod body is connected to the side wall of a baffle, while the upper end of the adjusting rod is connected to the telescopic end of a hydraulic cylinder. The rod body and the adjusting rod are coaxially arranged in the length direction and are connected by a threaded telescopic mechanism. Through the threaded telescopic mechanism at the connection between the rod body and the adjusting rod, the adjusting rod can be moved axially along the rod body to adjust the total length of the pull rod. This allows the pull rod to achieve an adjustable length function, eliminating the need to replace pull rods of different specifications as in the past. It can quickly adapt to the hydraulic cylinder stroke and discharge port movement requirements simply by rotating and telescopically extending, improving equipment operating efficiency and reducing production costs.

[0007] The threaded telescopic mechanism includes a cavity at the end of the rod, an adjusting rod inserted into the cavity, and an adjusting nut at the opening of the cavity. The outer wall of the adjusting rod has an external thread that mates with the adjusting nut. The adjusting rod is screwed into the adjusting nut through the external thread. When the total length of the rod needs to be adjusted, the rod is rotated, and the rod will drive the adjusting nut to rotate synchronously. Thus, through the threaded engagement between the adjusting rod and the adjusting nut, the adjusting rod moves axially within the cavity, thereby adjusting the total length of the rod.

[0008] Each discharge port is equipped with a hydraulic cylinder above it. There are two rods. The end of the rod away from the cavity is provided with a first connecting end for connecting to the baffle. The extended end of the adjusting rod is provided with a second connecting end for connecting to the extension end of the hydraulic cylinder. The first connecting end and the second connecting end enable the rod to be disassembled and assembled on the baffle and the extension end of the hydraulic cylinder.

[0009] A crossbar is provided on the telescopic end of the hydraulic cylinder, and second pins are provided at both ends of the crossbar. First pins are provided on both sides of the baffle. The first connecting end is the first hinge ring at the bottom end of the rod body. The first hinge ring is sleeved on the first pin to achieve hinge connection. The second connecting end is the second hinge ring at the top end of the adjusting rod. The second hinge ring is sleeved on the second pin to achieve hinge connection.

[0010] The second pin has an external thread section at its end. After the second hinge ring is fitted onto the second pin, a limiting nut is screwed onto the external thread end to axially constrain the second hinge ring and prevent it from shifting position.

[0011] The first pin has a hole on its circumferential surface. When the first hinge ring is fitted onto the first pin, a limiting pin is inserted into the hole to constrain the axial displacement of the first hinge ring.

[0012] In summary, compared with the prior art, this application includes at least one of the following beneficial technical effects:

[0013] 1. When this utility model is used, the length of the pull rod can be adjusted by the telescopic cooperation of the adjusting rod and the rod body. Unlike in the past, there is no need to replace different specifications of pull rods. The oil cylinder stroke and the action of the discharge port can be quickly adapted by simply rotating and telescopically extending, thereby improving the operating efficiency of the equipment and reducing the production cost.

[0014] 2. This utility model avoids the additional manufacturing costs of specially made long tie rods and the inventory costs incurred from stocking tie rods of various specifications. At the same time, it reduces the time and manpower required for frequent tie rod replacements, significantly shortens equipment downtime for debugging, and effectively reduces production and maintenance costs.

[0015] 3. When using this utility model, the hinged part is axially constrained by a limiting pin and a limiting nut to prevent the hinged ring from shifting position, ensuring the stability and reliability of the pull rod during operation, avoiding the normal operation of the discharge port due to loose connection, and reducing the risk of material leakage. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of the pull rod of this utility model;

[0017] Figure 2 For the present utility model Figure 1 Enlarged schematic diagram of the structure at point A in the middle;

[0018] Figure 3 This is a schematic diagram of the structure of the adjusting rod of this utility model after it extends outward from the end of the rod body;

[0019] Figure 4 This is a cross-sectional view of the internal structure of the cavity of this utility model;

[0020] Figure 5 This is a schematic diagram of the connection between the second hinge ring and the output end of the hydraulic cylinder in this utility model.

[0021] Figure 6 For the present utility model Figure 5 Enlarged schematic diagram of the structure at point B;

[0022] Figure 7 This is a schematic diagram of the connection between the first hinge ring and the baffle of this utility model.

[0023] Explanation of reference numerals in the attached figures:

[0024] 100. Rod body; 101. Cavity; 102. Adjusting nut; 200. First hinge ring; 300. Second hinge ring; 301. Adjusting rod; 400. Hydraulic cylinder; 500. Crossbar; 501. Second pin; 502. Limiting nut; 600. Baffle; 601. First pin; 602. Limiting pin. Detailed Implementation

[0025] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the following will be described in conjunction with the accompanying drawings of the embodiments of this utility model. Figure 1-7 The technical solutions of the embodiments of this utility model are clearly and completely described herein. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. All other embodiments obtained by those skilled in the art based on the described embodiments of this utility model are within the protection scope of this utility model.

[0026] An adjustable telescopic discharge port pull rod for an automatic coal sampling machine for automobiles, such as Figure 1 , Figure 2 , Figure 3 and Figure 4 As shown: It includes a rod body 100 and an adjusting rod 301. The end of the rod body 100 is connected to the side wall of the baffle 600, while the upper end of the adjusting rod 301 is connected to the telescopic end of the hydraulic cylinder 400. The rod body 100 and the adjusting rod 301 cooperate to form a pull rod. The rod body 100 and the adjusting rod 301 are coaxially arranged in the length direction. The rod body 100 and the adjusting rod 301 are connected by a threaded telescopic mechanism.

[0027] The rod body 100 is hollow or has a slot at the end. Through the threaded telescopic mechanism at the connection between the rod body 100 and the adjusting rod 301, the adjusting rod 301 can be moved axially along the rod body 100 to adjust the total length of the tie rod. This makes the tie rod adjustable in length, eliminating the need to replace tie rods of different specifications as before. It can quickly adapt to the stroke of the hydraulic cylinder 400 and the action requirements of the discharge port by simply rotating and telescopically extending, thereby improving equipment operating efficiency and reducing production costs.

[0028] Specifically, the threaded telescopic mechanism includes a cavity 101 opened at the end of the rod 100, an adjusting rod 301 inserted into the cavity 101, and an adjusting nut 102 provided at the opening of the cavity 101.

[0029] It also includes an external thread on the outer wall of the adjusting rod 301 that mates with the adjusting nut 102, and the adjusting rod 301 is screwed into the adjusting nut 102 through the external thread;

[0030] When it is necessary to adjust the total length of the pull rod, rotate the rod body 100. The rod body 100 will drive the adjusting nut 102 to rotate synchronously. Thus, through the threaded engagement between the adjusting rod 301 and the adjusting nut 102, the adjusting rod 301 can move axially within the cavity 101, thereby realizing the adjustment of the total length of the pull rod.

[0031] according to Figure 5 , Figure 6 and Figure 7 As shown, each discharge port is equipped with a hydraulic cylinder 400 above it, and there are two rods 100.

[0032] The end of the rod 100 away from the cavity 101 is provided with a first connecting end for connecting the baffle 600, and the extended end of the adjusting rod 301 is provided with a second connecting end for connecting the telescopic end of the hydraulic cylinder 400. The first connecting end and the second connecting end enable the rod 100 to be disassembled and assembled on the baffle 600 and the telescopic end of the hydraulic cylinder 400.

[0033] Specifically, a crossbar 500 is provided on the telescopic end of the hydraulic cylinder 400, and a second pin 501 is provided at both ends of the crossbar 500. A first pin 601 is provided on both sides of the baffle 600.

[0034] The first connecting end is the first hinge ring 200 at the bottom of the rod 100. The first hinge ring 200 is sleeved on the first pin 601 to achieve hinge connection.

[0035] The second connecting end is the second hinge ring 300 at the top of the adjusting rod 301. The second hinge ring 300 is sleeved on the second pin 501 to achieve hinge connection.

[0036] Specifically, the end of the second pin 501 is provided with an external thread section. After the second hinge ring 300 is sleeved on the second pin 501, the limiting nut 502 is screwed on the external thread end so that the limiting nut 502 axially constrains the second hinge ring 300 and prevents the second hinge ring 300 from shifting position in the axial direction of the second pin 501.

[0037] Specifically, a hole is provided on the circumferential surface of the first pin 601. After the first hinge ring 200 is sleeved on the first pin 601, a limiting pin 602 is inserted into the hole to constrain the axial displacement of the first hinge ring 200.

[0038] It is worth mentioning that when the material discharge operation is required, the hydraulic cylinder 400 is activated, and the telescopic end of the hydraulic cylinder 400 extends outward, causing the telescopic end of the hydraulic cylinder 400 to drive the crossbar 500 to move upward synchronously. The crossbar 500 drives the second hinge ring 300 and the adjusting rod 301 to move upward synchronously through the second pins 501 at both ends. The adjusting rod 301 drives the rod body 100 to rise through the adjusting nut 102. When the rod body 100 rises, it drives the first pin 601 to rise through the first hinge ring 200, thereby causing the first pin 601 to drive the baffle 600 at the discharge port to rise, opening the discharge port to realize the material discharge operation.

[0039] How to use this utility model:

[0040] First, it should be clarified that this utility model is mainly used for telescopic adjustment of the pull rod. It should be noted that the hydraulic cylinder and the discharge port of the sampler are structural devices in the sampler in the prior art. Since they are not the main technical features of this utility model, the model is not limited here, nor is the structure described in detail. Only the usage method and installation position of the pull rod are described in detail.

[0041] When it is necessary to adjust the length of the pull rod to counteract the shortening stroke of the telescopic end of the hydraulic cylinder 400, first pull the limit pin 602 out of the insertion hole and unscrew the limit nut 502 from the external thread section of the second pin 501. Then, remove the rod body 100 and the adjusting rod 301 from the first pin 601 and the second pin 501. Then, screw the rod body 100 and the adjusting rod 301. Through the threaded engagement between the adjusting rod 301 and the adjusting nut 102, the adjusting rod 301 moves axially within the cavity 101, thereby extending the adjusting rod 301 outward within the cavity 101. This allows the distance between the first hinge ring 200 and the second hinge ring 300 to be adjusted, thus increasing the distance between them and counteracting the shortening stroke of the telescopic end of the hydraulic cylinder 400.

[0042] This invention enables the extension and retraction of the entire tie rod, making the tie rod adjustable in length. Unlike in the past, there is no need to replace tie rods of different specifications. The tie rod can be quickly adapted to the 400 stroke of the hydraulic cylinder and the action requirements of the discharge port simply by rotating and extending it, thereby improving the operating efficiency of the equipment and reducing the production cost.

[0043] The above description is the preferred embodiment of this utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the principle of this utility model, and these improvements and modifications should also be considered within the protection scope of this utility model.

Claims

1. An adjustable telescopic discharge port pull rod for an automatic coal sampling machine for automobiles, characterized in that: It includes a rod body (100) and an adjusting rod (301), wherein the rod body (100) and the adjusting rod (301) are arranged coaxially; The rod body (100) and the adjusting rod (301) are connected by a threaded telescopic mechanism, so that the adjusting rod (301) can move axially along the rod body (100) to adjust the total length of the rod.

2. The adjustable telescopic discharge port pull rod for an automatic coal sampling machine for automobiles as described in claim 1, characterized in that: The threaded telescopic mechanism includes a cavity (101) opened at the end of the rod (100), and an adjusting nut (102) is provided at the opening of the cavity (101); It also includes an external thread located on the outer wall of the adjusting rod (301) and mating with the adjusting nut (102); When the rod (100) is rotated, the adjusting rod (301) is driven to move axially along the inside of the cavity (101) through the threaded engagement of the adjusting rod (301) and the adjusting nut (102) to achieve telescopic adjustment.

3. The adjustable telescopic discharge port pull rod for an automatic coal sampling machine for automobiles as described in claim 1, characterized in that: The end of the rod (100) away from the cavity (101) is provided with a first connecting end for connecting the baffle (600), and the extended end of the adjusting rod (301) is provided with a second connecting end for connecting the telescopic end of the oil cylinder (400).

4. The adjustable telescopic discharge port pull rod for an automatic coal sampling machine for automobiles as described in claim 3, characterized in that: The hydraulic cylinder (400) has a crossbar (500) on its telescopic end; The first connecting end is the first hinge ring (200) at the bottom end of the rod (100), which is hinged to the side wall of the baffle (600) through the first pin (601); The second connecting end is the second hinge ring (300) at the top of the adjusting rod (301), which is hinged to the end of the crossbar (500) through the second pin (501).

5. The adjustable telescopic discharge port pull rod for an automatic coal sampling machine for automobiles as described in claim 4, characterized in that: The second pin (501) has an external thread section at its end, which, together with the limiting nut (502), provides axial constraint on the second hinge ring (300).

6. The adjustable telescopic discharge port pull rod for an automatic coal sampling machine for automobiles as described in claim 4, characterized in that: The first pin (601) has a radially formed insertion hole, into which a limiting pin (602) is inserted to constrain the axial displacement of the first hinge ring (200).

Images