Pin pulling device for mine car
By designing a mine car pin pulling device containing hydraulic cylinder and buffer mechanism, the problem of pin pulling difficulties caused by the mine car pin deviation is solved, the stable pulling effect under different deviation conditions is achieved, and the maintenance efficiency of mine car is improved .
Patent Information
- Application Number
- CN202420809290.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-04-18
- Publication Date
- 2024-12-17
- Estimated Expiration
- 2034-04-18
AI Technical Summary
During the use of existing mine cars, due to vehicle collision and damage, the spatial positions of the pins are discrete, which leads to difficulties in pulling out the pins. In particular, the pins may be deflected or the deviation in the vertical direction is greater than 30mm, making it difficult to pull out. .
Design a mine car pin pulling device, including a base, vertical track, pin pulling arm, hydraulic cylinder, buffer frame and horizontal and vertical buffer mechanism, and adapt to the height and plane deviation of the pin through the hydraulic chuck grip and buffer mechanism. Ensure that the pin is effectively pulled out.
It effectively overcomes the problem of pin pulling problems caused by pin deviation, achieves stable and efficient pin pulling out under different deviation conditions, and improves the maintenance efficiency of mine trucks.
Smart Images
Figure CN222176635U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the field of automatic pin removal equipment for mine cars, and in particular relates to a pin removal device for a mine car. Background Art
[0002] During the use of existing mine carts, due to collisions and damage of the vehicles, the spatial positions of the pins connecting the mine carts are discrete and irregular; this leads to difficulties in pulling out the pins. It is generally assumed that the pins are vertical in the lock of the mine cart, and the deviation in the vertical direction is 30 mm. However, the actual situation is that the pins may be skewed in the lock of the mine cart, and there are also cases where the deviation in the vertical direction is greater than 30 mm, which makes it very difficult to pull out the pins. Utility Model Content
[0003] In view of this, an object of the present invention is to provide a mine car pin pulling device, which is used to overcome the above problems or at least partially solve or alleviate the above problems.
[0004] The utility model provides a mine car pin pulling device, which is used to pull out the pin from the mine car, comprising:
[0005] A base, wherein a frame is arranged on the base, and vertical rails are arranged on both sides of the frame;
[0006] Two pin pulling arms, the two pin pulling arms are respectively vertically slidably assembled on the vertical rails, and a first hydraulic cylinder is respectively arranged between the frame and each of the pin pulling arms;
[0007] A buffer frame, the buffer frame is arranged at the end of the pin pulling arm, a vertical buffer mechanism is arranged at the lower side of the buffer frame, and a horizontal and vertical buffer mechanism is arranged at the lower side of the vertical buffer mechanism;
[0008] A rotating hydraulic cylinder is arranged on the lower side of the transverse and longitudinal buffer mechanism, and a hydraulic chuck gripper is arranged on the lower side of the rotating hydraulic cylinder.
[0009] The utility model also has the following optional features.
[0010] Optionally, the pin pulling arm includes a truss and a vertical sliding part arranged at the root of the truss, the vertical sliding part is vertically slidably assembled on the vertical track, a pair of guide sleeves and a second hydraulic cylinder are arranged on the vertical sliding part, and a pair of first guide rods are also arranged at the root of the truss, the two first guide rods are respectively matched with the two guide sleeves, and the protruding end of the second hydraulic cylinder is connected to the truss.
[0011] Optionally, the vertical buffer mechanism includes an upper buffer plate, which is arranged on the lower side of the buffer frame, and a plurality of through holes are arranged on the buffer frame. A plurality of guide screws are connected to the upper part of the upper buffer plate, and a nut part of the upper part of each guide screw passes through a through hole. A first spring is also mounted on each guide screw, and the first spring is pressed between the buffer frame and the upper buffer plate.
[0012] Optionally, the transverse and longitudinal buffer mechanism comprises:
[0013] A pair of longitudinal guide rods, wherein the front and rear ends of the lower side of the upper buffer plate are respectively provided with first baffles, and two longitudinal guide rods are arranged in parallel between the two first baffles;
[0014] Two pairs of guide blocks, the upper and lower parts of the two pairs of guide blocks are fixedly connected with end panels, the upper parts of the two pairs of guide blocks are provided with longitudinal holes, and are slidably matched with a pair of longitudinal guide rods through the longitudinal holes, a second spring is provided between the first baffle and the guide blocks, and the lower parts of the two pairs of guide blocks are provided with transverse holes;
[0015] A lower buffer plate, a pair of second baffles are arranged on the left and right sides of the lower buffer plate, a pair of transverse guide rods are arranged between the two second baffles, the two transverse guide rods are matched with the transverse holes at the lower part of the two pairs of guide blocks, and a third spring is arranged between the second baffle and the guide block.
[0016] Optionally, a vertical in-place sensor is disposed on the upper portion of the buffer frame, and a detection end of the vertical in-place sensor passes downward through the buffer frame toward the upper buffer plate.
[0017] The pin pulling device of the mine car of the utility model is achieved by arranging buffer frames on two pin pulling arms. When the pins are pulled out by the hydraulic chuck gripper, the vertical buffer mechanism on the lower side of the buffer frame adapts to the height deviation of the pins, and the horizontal and vertical buffer mechanisms adapt to the plane deviation caused by the non-verticality of the pins, thereby solving the problem that the pins are difficult to pull out due to large height deviation and non-verticality. BRIEF DESCRIPTION OF THE DRAWINGS
[0018] Figure 1 This is an application structure diagram of the mine car pin pulling device of the utility model;
[0019] Figure 2 yes Figure 1 The structure diagram of the buffer rack in ;
[0020] Figure 3 The utility model is a structural diagram of a pin pulling arm of a mine car pin pulling device.
[0021] In the above figure: 1. Base; 2. Frame; 3. Vertical Track; 4. Pin Puller Arm; 401: Truss; 5. Buffer Frame; 6. Rotating Hydraulic Cylinder; 7. Hydraulic Chuck Gripper; 8. Guide Sleeve; 9. Second Hydraulic Cylinder; 10. First Guide Rod; 11. Upper Buffer Plate; 12. Guide Screw; 13. First Spring; 14. Longitudinal Guide Rod; 15. First Baffle; 16. Guide Block; 17. Second Spring; 18. Lower Buffer Plate; 19. Second Baffle; 20. Horizontal Guide Rod; 21. Third Spring; 22. Vertical Position Sensor; 23. Pin; 24. End Panel.
[0022] The present invention will be further described in detail below with reference to the accompanying drawings and embodiments. DETAILED DESCRIPTION
[0023] Example 1
[0024] refer to Figure 1 , Figure 2 and Figure 3 The embodiment of the utility model proposes a mine car pin pulling device for pulling out pins 23 from the mine car, comprising: a base 1, two pin pulling arms 4, a buffer frame 5 and a rotating hydraulic cylinder 6; a frame 2 is arranged on the base 1, and vertical rails 3 are arranged on both sides of the frame 2; the two pin pulling arms 4 are respectively vertically slidably assembled on the vertical rails 3, and a first hydraulic cylinder is respectively arranged between the frame 2 and each pin pulling arm 4; the buffer frame 5 is arranged at the end of the pin pulling arm 4, and a vertical buffer mechanism is arranged on the lower side of the buffer frame 5, and a horizontal and vertical buffer mechanism is arranged on the lower side of the vertical buffer mechanism; the rotating hydraulic cylinder 6 is arranged on the lower side of the horizontal and vertical buffer mechanism, and a hydraulic chuck gripper 7 is arranged on the lower side of the rotating hydraulic cylinder 6.
[0025] During operation, the two mine cars stay in front of the base 1, and the two pins 23 on the mine cars are located directly below the front ends of the two pin pulling arms 4. After the hydraulic chuck gripper 7 is opened, the two pin pulling arms 4 move downward along the vertical track 3 driven by the first hydraulic cylinder, so that the hydraulic chuck gripper 7 contacts the top of the pin 23. At this time, the vertical buffer mechanism on the lower side of the buffer frame 5 ensures that the hydraulic chuck gripper 7 is in contact with the pin 23. The hydraulic chuck gripper 7 begins to shrink, grasps the top of the pin 23, and rotates the hydraulic chuck gripper 7 and the pin 23 to an angle at which the pin 23 can be pulled out; the first hydraulic cylinder drives the two pin pulling arms 4 to move upward along the vertical track 3 on the base 1 to pull the pin 23 out upward. If the pin 23 itself is deflected, the hydraulic chuck gripper 7 can adapt to the appropriate position of the pin pulling under the lateral buffering and longitudinal buffering of the lateral and longitudinal buffering mechanisms to pull out the pin 23.
[0026] Example 2
[0027] refer to Figure 1 and Figure 3On the basis of Example 1, the pin pulling arm 4 includes a truss 401 and a vertical sliding part arranged at the root of the truss 401. The vertical sliding part is vertically slidably assembled on the vertical track 3. A pair of guide sleeves 8 and a second hydraulic cylinder 9 are arranged on the vertical sliding part. A pair of first guide rods 10 are also arranged at the root of the truss 401. The two first guide rods 10 are respectively matched with the two guide sleeves 8. The protruding end of the second hydraulic cylinder 9 is connected to the truss 401.
[0028] If the pin 23 is deflected too far in the horizontal direction, the pin 23 is likely to get stuck when the pin pulling arm 4 moves upward to pull the pin. At this time, the second hydraulic cylinder 9 begins to expand and contract slightly, driving the entire truss 401 to vibrate slightly back and forth in a pair of guide sleeves 8 through a pair of guide rods 10, so that the pin pulling arm 4 and the hydraulic chuck gripper 7 can pull out the pin 23 during the vibration process.
[0029] Example 3
[0030] refer to Figure 1 and Figure 2 On the basis of Example 2, the vertical buffer mechanism includes an upper buffer plate 11, which is arranged on the lower side of the buffer frame 5. The buffer frame 5 is provided with a plurality of through holes. The upper part of the upper buffer plate 11 is connected to a plurality of guide screws 12. The nut part of the upper part of each guide screw 12 passes through a through hole. Each guide screw 12 is also provided with a first spring 13, which is pressed between the buffer frame 5 and the upper buffer plate 11.
[0031] The upper buffer plate 11 forms a vertical buffer structure between the first spring 13 and the buffer frame 5 through the sleeve on multiple guide screws 12. When the pin pulling arm 4 drives the hydraulic chuck gripper 7 to move downward and contact the pin 23, even if the deviation of the pin 23 in the vertical direction exceeds 30 mm, the first spring 13 will overcome the installation height deviation of the pin 23 by compressing and buffering the collision between the hydraulic chuck gripper 7 and the pin 23.
[0032] Example 4
[0033] refer to Figure 1 and Figure 2On the basis of Example 2, the transverse and longitudinal buffer mechanism includes: a pair of longitudinal guide rods 14, two pairs of guide blocks 16 and a lower buffer plate 18; first baffles 15 are respectively provided at the front and rear ends of the lower side of the upper buffer plate 11, and two longitudinal guide rods 14 are arranged side by side between the two first baffles 15; the upper and lower parts of the two pairs of guide blocks 16 are fixedly connected with end panels 24, so that the two pairs of guide blocks 16 form an integral body, the upper parts of the two pairs of guide blocks 16 are provided with longitudinal holes, and the longitudinal holes are slidably matched with the pair of longitudinal guide rods 14, a second spring 17 is provided between the first baffle 15 and the guide block 16, and the lower parts of the two pairs of guide blocks 16 are provided with transverse holes; a pair of second baffles 19 are provided on the left and right sides of the lower buffer plate 18, a pair of transverse guide rods 20 are provided between the two second baffles 19, the two transverse guide rods 20 are matched with the transverse holes at the lower parts of the two pairs of guide blocks 16, and a third spring 21 is provided between the second baffle 19 and the guide block 16.
[0034] The grasping range of the hydraulic chuck gripper 7 is larger than the top range of the pin 23. Even if the top of the pin 23 is tilted due to non-verticality, in order to ensure that the hydraulic chuck gripper 7 can still grasp the top of the pin 23 when it is retracted, since the hydraulic chuck gripper 7 is fixedly connected to the lower buffer plate 18 by rotating the hydraulic cylinder 6, when the hydraulic chuck gripper 7 grasps the deflected pin 23, it will drive the lower buffer plate 18 to move adaptively along the guide block 16, and the second spring 17 and the third spring 21 will be correspondingly compressed under the adaptive condition, so that the hydraulic chuck gripper 7 can fully grasp the pin 23. When the hydraulic chuck gripper 7 completely pulls out the pin 23, the compressed second spring 17 and the third spring 21 automatically push the hydraulic chuck gripper 7 to reset.
[0035] Example 5
[0036] refer to Figure 1 and Figure 2 On the basis of Example 1, a vertical in-place sensor 22 is provided on the upper portion of the buffer frame 5 , and a detection end of the vertical in-place sensor 22 passes downward through the buffer frame 5 toward the upper buffer plate 11 .
[0037] When grabbing the pin 23, the hydraulic chuck gripper 7 continues to move downward when it contacts the top of the pin 23, and the pin 23 presses the hydraulic chuck gripper 7 and the rotating hydraulic cylinder 6 upward, and the rotating hydraulic cylinder 6 presses the horizontal and vertical buffer mechanisms and the upper buffer plate 11 upward, and the upper buffer plate 11 moves upward relative to the buffer frame 5, and finally triggers the vertical in-position sensor 22, and the vertical in-position sensor 22 sends the in-position information to the relevant control system, and the relevant control system controls the pin pulling arm 4 to stop moving downward.
[0038] The above is only a preferred specific implementation of the utility model, but the protection scope of the utility model is not limited thereto. Any changes or substitutions that can be easily thought of by a technician familiar with the technical field within the technical scope disclosed by the utility model should be included in the protection scope of the utility model. Therefore, the protection scope of the utility model should be based on the protection scope of the claims. The components and structures not described in detail in this embodiment are well-known components and common structures or common means in the industry, and are not described here one by one.
Claims
1. A mine car pin removal device, used for removing a pin (23) from a mine car, characterized in that: include: A base (1), wherein a frame (2) is arranged on the base (1), and vertical rails (3) are arranged on both sides of the frame (2); Two pin pulling arms (4), the two pin pulling arms (4) being respectively vertically slidably mounted on the vertical rail (3), and a first hydraulic cylinder being respectively arranged between the frame (2) and each of the pin pulling arms (4); A buffer frame (5), the buffer frame (5) being arranged at the end of the pin pulling arm (4), a vertical buffer mechanism being arranged at the lower side of the buffer frame (5), and a horizontal and vertical buffer mechanism being arranged at the lower side of the vertical buffer mechanism; A rotating hydraulic cylinder (6) is arranged on the lower side of the transverse and longitudinal buffer mechanism, and a hydraulic chuck gripper (7) is arranged on the lower side of the rotating hydraulic cylinder (6).
2. The mine car pin pulling device according to claim 1, characterized in that: The pin pulling arm (4) comprises a truss (401) and a vertical sliding portion arranged at the root of the truss (401), the vertical sliding portion being vertically slidably assembled on the vertical track (3), a pair of guide sleeves (8) and a second hydraulic cylinder (9) being arranged on the vertical sliding portion, a pair of first guide rods (10) being further arranged at the root of the truss (401), the two first guide rods (10) being respectively matched with the two guide sleeves (8), and the protruding end of the second hydraulic cylinder (9) being connected to the truss (401).
3. The mine car pin pulling device according to claim 1, characterized in that: The vertical buffer mechanism comprises an upper buffer plate (11), the upper buffer plate (11) being arranged on the lower side of the buffer frame (5), the buffer frame (5) being provided with a plurality of through holes, a plurality of guide screws (12) being connected to the upper portion of the upper buffer plate (11), a nut portion of the upper portion of each guide screw (12) passing through a through hole, and a first spring (13) being mounted on each guide screw (12), the first spring (13) being pressed between the buffer frame (5) and the upper buffer plate (11).
4. The mine car pin pulling device according to claim 3, characterized in that: The horizontal and vertical buffer mechanism comprises: a pair of longitudinal guide rods (14), wherein first baffles (15) are respectively arranged at the front and rear ends of the lower side of the upper buffer plate (11), and two longitudinal guide rods (14) are arranged in parallel between the two first baffles (15); Two pairs of guide blocks (16), the upper and lower parts of the two pairs of guide blocks (16) are fixedly connected to end panels (24), the upper parts of the two pairs of guide blocks (16) are provided with longitudinal holes, and are slidably matched with a pair of longitudinal guide rods (14) through the longitudinal holes, a second spring (17) is provided between the first baffle (15) and the guide blocks (16), and the lower parts of the two pairs of guide blocks (16) are provided with transverse holes; A lower buffer plate (18), a pair of second baffles (19) are arranged on the left and right sides of the lower buffer plate (18), a pair of transverse guide rods (20) are arranged between the two second baffles (19), the two transverse guide rods (20) are matched with transverse holes at the lower parts of the two pairs of guide blocks (16), and a third spring (21) is arranged between the second baffle (19) and the guide block (16).
5. The mine car pin pulling device according to claim 3, characterized in that: A vertical in-place sensor (22) is provided on the upper portion of the buffer frame (5), and a detection end of the vertical in-place sensor (22) passes downward through the buffer frame (5) toward the upper buffer plate (11).