A device for quick installation of brake pad rivets of a dump truck

Abstract

The utility model provides a kind of device that self-unloading truck brake pad rivet is quickly installed, comprising: support plate, horizontal arrangement, and the upper surface of support plate is relatively spaced and is provided with movement rivet pressing assembly and fixed rivet pressing assembly, the movement rivet pressing assembly includes the movement ram that horizontal movement is along interval direction, and the fixed rivet pressing assembly includes the fixed ram that is adapted with movement ram;Between movement ram and fixed ram, vertically guiding is provided with lifting platform on support plate, and lifting platform is horizontally arranged and located below movement ram and fixed ram, when riveting work to brake pad, the adjustment of lifting platform can be riveted by row, without manual padding or adjusting workpiece position, compared with traditional riveting machine, riveting efficiency can be improved.

Description

Technical Field

[0001] This utility model relates to the field of riveting equipment technology, and in particular to a device for quick installation of rivets on brake pads of dump trucks. Background Technology

[0002] Dump trucks use drum brakes. The brake pads of drum brakes are connected to the brake shoes by rivets. The brake pads are consumable parts and need to be replaced regularly.

[0003] Currently, when replacing brake pads, a riveting machine is used to rivet the rivets. Using a riveting machine to press the rivets can greatly improve work efficiency compared to manual labor. However, the current riveting machine usually has only one pressure head, which requires pressing the rivets one by one. Furthermore, since the rivets are arranged in rows, the brake pads of large dump trucks are fixed by four or more rows of rivets. When riveting rows of rivets, manual force is required to change the rivet points, which is labor-intensive and inefficient. Utility Model Content

[0004] The purpose of this invention is to solve the above-mentioned problems by providing a device for quick installation of brake pad rivets on dump trucks.

[0005] To achieve the above objectives, the technical solution of this utility model is: a device for quick installation of rivets on brake pads of dump trucks, comprising: A support plate is horizontally arranged, and a moving riveting assembly and a fixed riveting assembly are arranged at intervals on the upper surface of the support plate. The moving riveting assembly includes a moving pressure head that moves horizontally along the interval direction, and the fixed riveting assembly includes a fixed pressure head that is adapted to the moving pressure head. A lifting platform is vertically guided between the moving pressure head and the fixed pressure head, and the lifting platform is horizontally arranged below the moving pressure head and the fixed pressure head.

[0006] Furthermore, the support plate is vertically guided by multiple guide rods; the lifting platform is disposed at the lower end of the multiple guide rods, and the lower end of the multiple guide rods is connected to the connecting plate.

[0007] Furthermore, a fixing plate is provided at intervals below the connecting plate, a lead screw is rotatably mounted on the fixing plate, the lead screw is driven by a servo motor, and a lead screw nut is provided in the middle area of ​​the connecting plate, the lead screw nut is connected to the lead screw drive.

[0008] Furthermore, the support plate is provided with a vertical plate, on which a telescopic rod is horizontally arranged. On both sides of the telescopic rod, a guide member is provided on the vertical plate. A synchronization plate is provided at the end of the two guide members. The moving pressure head is arranged on the synchronization plate, and the telescopic rod is connected to the synchronization plate.

[0009] Furthermore, a pressure head seat is provided at the position corresponding to the synchronous plate and the telescopic rod, and the moving pressure head is inserted and positioned in conjunction with the pressure head seat.

[0010] Furthermore, a first guide sleeve is detachably fixed on the vertical plate, and the guide component cooperates with the guide sleeve.

[0011] Furthermore, the support plate is also provided with a second vertical plate, on which a horizontal guide rod is provided. The fixed pressure head is provided at the end of the horizontal rod, and the second vertical plate is provided with a positioning component for axial positioning of the horizontal rod.

[0012] Furthermore, the positioning component includes a positioning plate that moves vertically, and the outer circumferential surface of the horizontal rod is provided with a positioning slot that engages with the positioning plate.

[0013] Furthermore, a positioning sleeve coaxial with the horizontal bar is also provided on the second vertical plate, and an insertion interface is provided on the side wall of the positioning sleeve. This utility model discloses a device for quick installation of brake pad rivets on dump trucks, which has the following advantages compared with the prior art: When riveting brake pads, the brake shoes and brake pads can be pre-installed. The axial end of the brake shoe is placed on a lifting platform, at which time the axis of the brake shoe is vertical, and the rivets that fix the brake pads are spaced apart along the axis of the brake shoe. The height of the lifting platform can be adjusted so that the pressure head aligns with a row of rivets and then rivets a row of rivets by sliding the brake shoe. After riveting, the lifting platform is adjusted to rivet the next row of rivets, thus riveting the rivets row by row. In this way, the worker only needs to slide the brake shoe to perform the riveting work. By adjusting the lifting platform, riveting can be performed row by row without the need for manual shimming or adjusting the position of the workpiece. Compared with the traditional single pressure head riveting, the riveting efficiency can be improved by at least 1 times. Attached Figure Description

[0014] Figure 1 This is a front view structural schematic diagram of a device for quick installation of brake pad rivets on dump trucks according to the present invention.

[0015] Figure 2 This is a schematic diagram of the overall structure of a device for quick installation of brake pad rivets on dump trucks according to this utility model. Figure 1 .

[0016] Figure 3 This is a schematic diagram of the overall structure of a device for quick installation of brake pad rivets on dump trucks according to this utility model. Figure 2 .

[0017] Figure 4 This is a top view schematic diagram of a device for quick installation of brake pad rivets on a dump truck according to the present invention.

[0018] Figure 5 This is a schematic diagram of the lifting platform in a device for quick installation of brake pad rivets on a dump truck according to this utility model.

[0019] Figure 6 This is a bottom view of the lifting platform in a device for quick installation of brake pad rivets on a dump truck according to the present invention.

[0020] Figure 7 This is a schematic diagram of the moving pressure head and drive assembly in a device for quick installation of brake pad rivets on a dump truck according to the present invention.

[0021] Figure 8 This is a schematic diagram of the axial structure of the fixing head in a device for quick installation of brake pad rivets on a dump truck according to this utility model.

[0022] Figure 9 This is a schematic diagram of the fixed pressure head in a device for quick installation of brake pad rivets on a dump truck according to this utility model.

[0023] Figure 10 for Figure 8 The diagram shows a cross-sectional view of section AA in this invention.

[0024] Figure 11 for Figure 8 The diagram shows a cross-sectional view of the structure at point BB in this invention.

[0025] In the diagram: 1. Support plate; 10. Vertical plate one; 11. Vertical plate two; 12. First guide sleeve; 2. Lifting platform; 20. Guide rod; 21. Screw nut; 22. Connecting plate; 23. Support rod; 24. Fixing plate; 25. Servo motor; 26. Screw; 3. Motion riveting assembly; 30. Cylinder; 31. Telescopic rod; 32. Motion pressure head; 33. Guide component; 34. Synchronization plate; 35. Pressure head seat; 4. Fixed riveting assembly; 40. Fixed pressure head; 41. Horizontal rod; 410. Connecting seat; 412. Positioning slot; 42. Positioning plate; 420. Power telescopic component; 43. Positioning sleeve; 430. Insertion interface; 44. Top screw; 45. Second guide sleeve. Detailed Implementation

[0026] The present invention will now be described in further detail with reference to the accompanying drawings. The drawings are simplified schematic diagrams, illustrating only the basic structure of the present invention, and therefore only show the components relevant to the present invention.

[0027] Please refer to Figure 1-11 This utility model provides a device for quick installation of brake pad rivets on dump trucks. As a specific embodiment, it includes: A support plate 1 is horizontally arranged. A moving riveting assembly 3 and a fixed riveting assembly 4 are arranged at intervals on the upper surface of the support plate 1. The moving riveting assembly 3 includes a moving pressure head 32 that moves horizontally along the interval direction. The fixed riveting assembly 4 includes a fixed pressure head 40 that is adapted to the moving pressure head 32. A lifting platform 2 is vertically guided on the support plate 1 between the moving pressure head 32 and the fixed pressure head 40. The lifting platform 2 is horizontally arranged below the moving pressure head 32 and the fixed pressure head.

[0028] Specifically, the support plate 1 can be made of high-strength alloy steel plate, with support legs at the bottom. The moving riveting assembly 3 and the fixed riveting assembly 4 are spaced apart on the upper surface of the support plate 1. The moving pressure head 32 of the moving riveting assembly 3 can move horizontally along the spaced direction between the two. The structure of the moving pressure head 32 and the fixed pressure head 40 adopts existing technology, which will not be described in detail here. The lifting platform 2 located between the two pressure heads is made of metal, and the lifting platform 2 and the support plate 1 are vertically guided by a linear guide rail or guide hole and guide column to ensure that the lifting process is stable and does not deviate. By setting the lifting platform 2, the brake shoe and brake pad can be pre-installed when riveting the brake pad. The axial end of the brake shoe is placed on the lifting platform 2. At this time, the axis of the brake shoe is vertical, and the rivets fixing the brake pad are spaced apart along the axis of the brake shoe. At this point, the height of the lifting platform 2 can be adjusted so that the pressure head aligns with the next row of rivets. Then, the rivets in one row are riveted by sliding the brake shoes. After riveting, the lifting platform 2 is adjusted to rivet the next row of rivets, thus riveting the rivets row by row. In this method, workers only need to slide the brake shoes to perform the riveting work. By adjusting the lifting platform 2, riveting can be performed row by row without the need for manual shimming or adjusting the position of the workpiece. Compared with the traditional single-head riveting method, this method can improve riveting efficiency by at least 100%, while avoiding the physical exertion of manually adjusting the workpiece, reducing labor intensity. The low labor intensity and convenient operation improve installation efficiency and achieve rapid installation.

[0029] Further, refer to Figure 1 - Figure 3 Both the moving pressure head 32 and the fixed pressure head 40 can be set at intervals in the vertical direction, so that two rows of rivets can be riveted at one time, further improving construction efficiency.

[0030] Furthermore, a plurality of guide rods 20 are vertically guided on the support plate 1; the lifting platform 2 is located at the lower end of the plurality of guide rods 20, and the lower ends of the plurality of guide rods 20 are all connected to the connecting plate 22.

[0031] Further, refer to Figure 1 - Figure 6Guide rods 20 are installed at each of the four corners of the lifting platform 2. These guide rods 20 engage with the support plate 1 for guidance. The guide rods 20 are made of round steel. Their upper ends engage with the support plate 1 via guide sleeves (with built-in linear bearings) for vertical guidance, while their lower ends are detachably fixed to the connecting plate 22 via welding or bolts. The connecting plate 22 is a rectangular steel plate adapted to the dimensions of the lifting platform 2, ensuring that the four guide rods 20 can synchronously drive the lifting platform 2 to rise and fall. Further reference Figure 1 - Figure 6 A fixing plate 24 is provided at intervals below the connecting plate 22. A lead screw 26 is rotatably provided on the fixing plate 24. The lead screw 26 is driven and connected to a servo motor 25. A lead screw 26 nut 21 is provided in the middle area of ​​the connecting plate 22. The lead screw 26 nut 21 is driven and connected to the lead screw 26.

[0032] Specifically, four support rods 23 are vertically arranged below the mounting plate, and a fixing plate 24 is located at the lower end of the four support rods 23. A lead screw 26 is rotatably mounted on the fixing plate 24 via a bearing seat. The axis of the lead screw 26 is aligned with the vertical direction, and its lower end is driven and connected to the output shaft of the servo motor 25 via a coupling. The servo motor 25 is fixed below the fixing plate 24 by a motor bracket. A mounting hole is opened in the middle area of ​​the connecting plate 22, and the lead screw 26 nut 21 is fixed in the mounting hole by bolts. The lead screw 26 nut 21 and the lead screw 26 are threaded together. By controlling the forward and reverse rotation of the servo motor, the connecting plate 22 can be driven to rise and fall, thereby driving the lifting platform 2 to rise and fall. The lifting platform 2 can be linearly adjusted, and the servo motor has high adjustment accuracy, which is beneficial for the high-precision lifting adjustment of the lifting platform 2.

[0033] Furthermore, the support plate 1 is provided with a vertical plate 10, and a telescopic rod 31 is horizontally provided on the vertical plate 10. The vertical plate 10 is provided with guide members 33, and the ends of the two guide members 33 are provided with synchronization plates 34. The moving pressure head 32 is provided on the synchronization plate 34, and the telescopic rod 31 is connected to the synchronization plate 34.

[0034] For details, please refer to Figure 7 The vertical plate 10 can be fixed to the support plate 1 by welding or threaded connection. A cylinder 30 is provided on the vertical plate 10, and the telescopic rod 31 is the driving rod of the cylinder 30. A guide member 33 is provided on the vertical plate 10 through a guide. The axis of the guide member 33 is parallel to the driving rod. The ends of the two guide rods 20 are connected by a synchronous plate 34. The end of the telescopic rod 31 is connected to the middle area of ​​the synchronous plate 34. This arrangement can improve the smoothness of the telescopic rod 31 driving the moving pressure head 32, ensure the smooth movement of the moving pressure head, and guarantee the riveting effect.

[0035] Furthermore, a pressure head seat 35 is provided at the position corresponding to the synchronous plate 34 and the telescopic rod 31, and the moving pressure head 32 is inserted and positioned in conjunction with the pressure head seat 35.

[0036] As one specific implementation method, refer to Figure 7 The pressure head seat 35 is made of steel and has a plug-in hole on the upper part for insertion and mating with the moving pressure head 32. The pressure head seat 35 is fixed to the middle area of ​​the synchronization plate 34 by screws. This setting allows for quick replacement of the moving pressure head 32. Different specifications of dump truck brake pads may use different sized rivets, and the corresponding pressure head size also needs to be adjusted. This plug-in positioning and mating structure allows for quick disassembly and replacement of the moving pressure head 32 without disassembling the synchronization plate 34 or the telescopic rod 31, making the operation convenient.

[0037] Furthermore, a first guide sleeve 12 is detachably fixedly installed on the vertical plate 10, and the guide member 33 is guided and engaged with the guide sleeve 12. Specifically, as a preferred embodiment, a through hole adapted to the guide member 33 is provided on the vertical plate 10, and the first guide sleeve 12 is installed at the through hole by a screw. The guide member 33 is guided and engaged with the first guide sleeve 12. The first guide sleeve 12 is made of wear-resistant alloy material. The guide member 33 passes through the first guide sleeve 12 to achieve horizontal guidance. After long-term use, the guide hole is prone to wear, which leads to a decrease in guiding accuracy. The detachable first guide sleeve 12 is a vulnerable part and can be replaced separately after wear, without replacing the entire vertical plate 10, thus reducing maintenance costs.

[0038] Furthermore, as a specific implementation method, refer to Figure 8 - Figure 11 The support plate 1 is also provided with a second vertical plate 11, and a horizontal rod 41 is provided on the second vertical plate 11 for horizontal guidance. The fixed pressure head 40 is provided at the end of the horizontal rod 41, and a positioning component for axial positioning of the horizontal rod 41 is provided on the second vertical plate 11.

[0039] Specifically, the second vertical plate 11 on the support plate 1 is detachably fixed to the other edge of the support plate 1 by bolts, and is arranged opposite to the first vertical plate 10. The height of the second vertical plate 11 is the same as that of the first vertical plate 10. A horizontal guide hole is opened on the second vertical plate 11, and a horizontal rod 41 passes through the guide hole to achieve horizontal guidance. The horizontal rod 41 is made of high-strength round steel, and its end facing the moving pressure head 32 is fixed to the pressure head 40 by bolts or plug-in connection. The fixed pressure head 40 and the moving pressure head 32 are collinear. The positioning component is set on the second vertical plate 11 to fix the axial position of the horizontal rod 41. With this setting, the positioning component can be released when the fixed pressure head 40 is replaced, which facilitates the disassembly of the horizontal rod 41 and the replacement of the fixed head as a whole. Of course, a connecting seat 410 for connecting the fixed pressure head 40 can also be set at the end of the horizontal rod 41. The connecting seat 410 can also be provided with a plug-in hole, which is used to plug into the fixed pressure head 40.

[0040] Furthermore, as a specific implementation, the positioning component has the following structure: the positioning component includes a positioning plate 42 that moves along the vertical direction, and the outer peripheral surface of the horizontal rod 41 is provided with a positioning slot 412 that is inserted and engaged with the positioning plate 42.

[0041] For details, please refer to Figure 8 - Figure 11 The horizontal bar 41 is a steel bar with a positioning slot 412 cut into its outer circumference. The positioning plate 42 is a rigid plate set vertically, which can be driven to move vertically by the power telescopic rod 31. The power telescopic rod 31 is fixed on the vertical plate 11. The axial distance of the positioning slot 412 is adapted to the thickness of the insertion plate, with a fitting clearance between 0.2 and 0.3 mm. When the insertion plate is inserted into the positioning slot 412, the plate surface of the insertion plate and the axial side of the insertion slot are matched, thereby enabling axial positioning of the horizontal bar 41. Compared with the traditional method of positioning by tightening with bolts, the operation of the positioning plate 42 is faster, without the need to tighten bolts, only requiring control of the cylinder 3. Positioning and unlocking can be completed by manually turning the knob, shortening the time for adjusting the position of the fixed pressure head 40 and further improving operational efficiency. In specific applications, it includes two positioning plates 42 spaced apart, and two positioning slots 412 are provided on both sides of the horizontal rod 41 on the axis. The distance between the bottom surfaces of the two positioning slots 412 is adapted to the distance between the sides of the two positioning plates that are close to each other. When the two positioning plates 412 are inserted into the two positioning slots 412, the horizontal rod 41 can be circumferentially positioned by the cooperation between the sides of the positioning plates that are close to each other and the bottom surfaces of the two positioning slots 412, thereby ensuring that the two fixed pressure heads 40 are positioned at intervals in the vertical direction.

[0042] Furthermore, preferably, the vertical plate 11 is also provided with a positioning sleeve 43 coaxial with the horizontal rod 41, and the side wall of the positioning sleeve 43 is provided with an insertion interface 430. Specifically, the positioning sleeve 43 is a rigid sleeve made of steel, and the axial dimension of the insertion interface 430 on the side wall of the positioning sleeve 43 is equal to the axial distance of the positioning slot 412. With this arrangement, the insertion plate is inserted into the positioning slot 412 and simultaneously inserted into the insertion interface 430. The insertion interface 430 positions the insertion plate, and the insertion plate positions the horizontal rod 41 axially, thus achieving a better positioning effect.

[0043] Preferably, a set screw 44 is threaded to the end of the positioning sleeve 43. The set screw 44 can be rotated to apply an axial force to the horizontal rod 41 when disassembling the horizontal rod 41, which facilitates the horizontal rod 41 being pulled out of the positioning sleeve 43.

[0044] Preferably, a second guide sleeve 45 is also provided on the vertical plate 2 11 to guide and cooperate with the horizontal bar 41, which facilitates the smooth movement of the horizontal bar 41 and makes it easy to replace the second guide sleeve 45 after it wears out.

[0045] Obviously, the above embodiments are merely illustrative examples for clear explanation and are not intended to limit the implementation. Those skilled in the art will recognize that other variations or modifications can be made based on the above description. It is neither necessary nor possible to exhaustively list all possible implementations here. However, obvious variations or modifications derived therefrom are still within the protection scope of this invention.

Claims

1. A device for quick installation of rivets on brake pads of a dump truck, characterized in that, include: A support plate (1) is horizontally arranged. A moving riveting assembly (3) and a fixed riveting assembly (4) are arranged at intervals on the upper surface of the support plate (1). The moving riveting assembly (3) includes a moving pressure head (32) that moves horizontally along the interval direction. The fixed riveting assembly (4) includes a fixed pressure head (40) that is adapted to the moving pressure head (32). A lifting platform (2) is vertically guided on the support plate (1) between the moving pressure head (32) and the fixed pressure head (40). The lifting platform (2) is horizontally arranged below the moving pressure head (32) and the fixed pressure head.

2. The device for quick installation of brake pad rivets on a dump truck according to claim 1, characterized in that, The support plate (1) is vertically guided by multiple guide rods (20); the lifting platform (2) is located at the lower end of the multiple guide rods (20), and the lower end of the multiple guide rods (20) is connected to the connecting plate (22).

3. The device for quick installation of rivets on dump truck brake pads according to claim 2, characterized in that, A fixing plate (24) is provided at intervals below the connecting plate (22). A lead screw (26) is rotatably provided on the fixing plate (24). The lead screw (26) is driven and connected to a servo motor (25). A lead screw nut (21) is provided in the middle area of ​​the connecting plate (22). The lead screw nut (21) is driven and connected to the lead screw (26).

4. The device for quick installation of brake pad rivets on a dump truck according to claim 1, characterized in that, The support plate (1) is provided with a vertical plate (10), and a telescopic rod (31) is horizontally provided on the vertical plate (10). The vertical plate (10) is located on both sides of the telescopic rod (31). A guide member (33) is provided on both vertical plates (10). A synchronization plate (34) is provided at the end of the two guide members (33). The moving pressure head (32) is provided on the synchronization plate (34). The telescopic rod (31) is connected to the synchronization plate (34).

5. The device for quick installation of rivets on brake pads of a dump truck according to claim 4, characterized in that, The synchronous plate (34) and the telescopic rod (31) are respectively provided with a pressure head seat (35), and the moving pressure head (32) is inserted and positioned with the pressure head seat (35).

6. The device for quick installation of brake pad rivets on a dump truck according to claim 5, characterized in that, A first guide sleeve (12) is detachably fixed on the vertical plate (10), and the guide member (33) is guided and cooperates with the guide sleeve.

7. The device for quick installation of brake pad rivets on a dump truck according to claim 1, characterized in that, The support plate (1) is also provided with a second vertical plate (11), and a horizontal rod (41) is provided on the second vertical plate (11) for horizontal guidance. The fixed pressure head (40) is provided at the end of the horizontal rod (41), and a positioning component for axial positioning of the horizontal rod (41) is provided on the second vertical plate (11).

8. The device for quick installation of brake pad rivets on a dump truck according to claim 7, characterized in that, The positioning component includes a positioning plate (42) that moves vertically, and the outer circumferential surface of the horizontal rod (41) is provided with a positioning slot (412) that engages with the positioning plate (42).

9. The device for quick installation of brake pad rivets on a dump truck according to claim 8, characterized in that, The vertical plate 2 (11) is also provided with a positioning sleeve (43) coaxial with the horizontal bar (41), and the side wall of the positioning sleeve (43) is provided with an insertion interface (430).

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