Machine tool pressing and clamping type protection device and loading machine

Abstract

The invention provides a machine tool pressing and clamping type protection device and a loader, the machine tool pressing and clamping type protection device is installed at the front end of a loader machine tool, and the machine tool pressing and clamping type protection device comprises a protection cover body which comprises a U-shaped main cover plate arranged at the front end of the loader machine tool in a sleeving mode and two installation frames connected to the U-shaped main cover plate and used for being connected with the loader machine tool; the number of the sliding protection covers is two, and the sliding protection covers are connected to the inner sides of the two ends of the U-shaped main cover plate in a sliding mode respectively. The power control device is fixed on the upper side of the U-shaped main cover plate; the transmission rack device is connected between the power control device and the sliding protection cover and used for driving the sliding protection cover to stretch out and draw back towards the two sides of the U-shaped main cover plate in the axial direction of the U-shaped main cover plate.

Description

Technical Field

[0001] The present application relates to the technical field of loaders, and in particular to a machine clamping protection device and a loader. Background Art

[0002] Loaders often need to be moved between different construction sites. To prevent sharp front-end components from damaging objects or causing personal injury during transfer, there is a growing demand for front-end protection devices.

[0003] However, most of the existing transfer protection devices are of fixed width. When the loader replaces the front-end equipment of different widths (such as buckets, forks, etc.), the original protection device is often unable to adapt. Secondly, the installation process of the existing transfer protection device is also relatively cumbersome. It is necessary to first remove the original connecting bolts on the equipment, and then fix the protection device together with the bucket teeth, replaceable blades and other components. After the transfer is completed, the protection device needs to be removed and the bolts need to be retightened according to the specified torque. This process is not only time-consuming and labor-intensive, but for loaders that operate for a long time, it is particularly difficult to remove worn or rusted bolts. More importantly, if the torque of the secondary tightening is insufficient, it will significantly increase the risk of loosening of the connector, posing a safety hazard. Summary of the Invention

[0004] In order to solve the above-mentioned problems in the prior art, the first aspect of the present application provides a tool clamping protection device installed at the front end of a loader tool, comprising: The protective cover body includes a U-shaped main cover plate for sleeved on the front end of the loader implement and two mounting brackets connected to the U-shaped main cover plate for connecting the loader implement; Sliding protective covers, the number of which is two, which are slidably connected to the inner sides of both ends of the U-shaped main cover plate; A power control device is fixed on the upper side of the U-shaped main cover plate; and The transmission rack device is connected between the power control device and the sliding protection cover, and is used to drive the sliding protection cover to extend and retract along the axial direction of the U-shaped main cover plate toward both sides thereof.

[0005] Furthermore, the power control device includes a controller and a reduction motor. The reduction motor is inverted on the U-shaped main cover plate, and its output end is connected to a driving gear that cooperates with the transmission rack device.

[0006] Furthermore, the transmission rack device includes two transmission racks arranged rotationally symmetrically around the driving gear, and the transmission rack includes a transmission rack plate, one end of the transmission rack plate extends toward the middle of the two transmission racks to form an extension plate, and the extension plate is provided with a guide mounting column connected to the sliding protective cover, and the guide mounting columns on the two transmission rack plates are located on the same axis.

[0007] Furthermore, an upper guide groove is provided on the upper side of the U-shaped main cover plate, the guide mounting column passes through the upper guide groove and is connected to the top of the sliding protective cover, and the guide mounting column is slidably connected to the upper guide groove, and a lower guide groove is provided on the lower side of the U-shaped main cover plate, and the bottom of the sliding protective cover is slidably connected to the lower guide groove through a guide copper sleeve and a guide bolt.

[0008] Furthermore, the top of the U-shaped main cover plate is connected to a plurality of transmission rack guide seats which are symmetrically arranged on both sides of the reduction motor and distributed axially along the U-shaped main cover plate, and the bottom of the transmission rack plate is provided with a guide shaft which is slidably connected to the transmission rack guide seat.

[0009] Furthermore, two parallel long track plates are provided on the inner side of the U-shaped main cover plate, and a reinforcing rib plate is connected between the side surface of the long track plate and the U-shaped main cover plate.

[0010] Furthermore, the sliding protection cover includes a U-shaped cover plate, the U-shaped cover plate is connected to a support pin, and the support pin is sleeved with a ceramic bearing that slides with the long track plate.

[0011] Furthermore, the mounting frame is a U-shaped fork structure with an insert tongue provided on its inner side, and a slot matching the insert tongue is provided on the side of the U-shaped main cover plate, and the mounting frame is fixedly connected to the U-shaped main cover plate through the insert tongue.

[0012] Furthermore, a clamping rod is connected to the end of the mounting frame, and the clamping rod includes a clamping chassis, a connecting rod and a locking nut. One end of the connecting rod is connected to the clamping chassis through a ball hinge, and the other end is connected to the mounting frame through a locking nut.

[0013] A second aspect of the present application provides a loader, comprising the implement clamping protection device as described in any one of the above items.

[0014] Compared with the prior art, the present invention has the following advantages: 1. The clamping type protection device for machine tools of the present application can be quickly clamped and fixed to the front end of the machine tool through an adjustable clamping rod without disassembling the nut; the clamping chassis and the connecting rod of the clamping rod are ball-hinged, which can be easily clamped on planes of various complex structures, greatly shortening the installation and disassembly time of the front end protection device of the machine tool and improving work efficiency.

[0015] 2. The clamping protection device for the implement of the present application controls the extension and retraction buttons, and the driving motor drives the driving gear and the transmission rack to realize the extension and retraction of the sliding protection cover, thereby obtaining a protection device for the front end of implements of different widths, which can be suitable for loaders of different widths.

[0016] 3. The clamping type protection device for the implements of the present application is equipped with width-viewing light strips on the protective cover main body and the two sliding protective covers. For loaders that are transferred at night, pedestrians can clearly see and judge the width of the loader's implements, thereby avoiding safety accidents in which pedestrians collide with the loader due to the blinding effect of the loader's headlights on pedestrians. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a schematic structural diagram of the machine tool press-clamp protection device of this application; Figure 2 This is a schematic structural diagram of the machine tool press-clamp protection device of this application; Figure 3 for Figure 2 AA section view; Figure 4 for Figure 2 BB section view; Figure 5 This is a schematic structural diagram of the protective cover body of this application; Figure 6 This is a schematic structural diagram of the protective cover body of this application; Figure 7 This is a schematic structural diagram of the U-shaped main cover plate of this application; Figure 8 This is a schematic diagram of the structure of the mounting frame of this application; Figure 9 for Figure 5 CC section of ; Figure 10 This is a schematic structural diagram of the sliding protective cover of the present application; Figure 11 This is a schematic structural diagram of the transmission rack device of the present application; Figure 12 This is a schematic structural diagram of the transmission rack of this application; Figure 13 This is a schematic diagram of the structure of the power control system of this application; Figure 14 A schematic structural diagram of the clamping rod of this application; Figure 15 This is a schematic diagram of the structure of the license plate bracket of this application; Figure 16 This is a schematic structural diagram of the power control box cover of this application; Figure 17 This is a schematic structural diagram of the outer limit block of this application.

[0018] In the picture: 1. Protective cover body; 11. U-shaped main cover plate; 12. Mounting bracket; 13. Long track plate; 14. Reducer motor mounting base; 15. Power control box; 16. Drive rack guide base; 17. Reinforcement rib plate; 18. Clamping rod mounting base; 19. Stop block; 110. Wide-view light strip I; 2. Sliding protective cover; 21. U-shaped cover plate; 22. Support pin; 23. Ceramic bearing; 24. Circlip; 25. Wide-view light strip II; 3. Drive rack assembly; 31. Drive rack; 32 , guide copper sleeve; 33, fixing nut; 34, guide bolt; 35, driving gear; 311, transmission rack plate; 312, guide mounting column; 313, guide shaft; 4, power control device; 41, reduction motor; 42, extension control button; 43, retraction control button; 44, mobile power supply; 45, controller; 5, clamping rod; 51, clamping chassis; 52, connecting rod; 53, locking nut; 6, license plate bracket; 7, power control box cover; 8, outer limit block. DETAILED DESCRIPTION

[0019] To facilitate understanding of this application, the following will clearly and completely describe the technical solutions in the embodiments of this application in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of this application, not all of the embodiments. Based on the embodiments of this application, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of this application.

[0020] refer to Figures 1 to 4 As shown, the implement clamping protection device provided by the present application is installed at the front end of the loader implement to prevent the sharp parts at the front end of the implement from damaging objects or causing personal injury during the loader's transfer.

[0021] In some embodiments, the tool clamping protection device provided by the present application includes: a protective cover body 1, a sliding protective cover 2, a transmission rack device 3 and a power control device 4, wherein the protective cover body 1 includes a U-shaped main cover plate 11 for being mounted on the front end of the loader and two mounting brackets 12 connected to the U-shaped main cover plate 11 for connecting the loader tool; the number of the sliding protective covers 2 is two, which are respectively slidably connected to the inner side of the U-shaped main cover plate 11; the outer limit blocks 8 of the sliding protective cover 2 that can slide and retract are installed at both ends of the U-shaped main cover plate 11, Figure 17 As shown, the outer limit block 8 is fastened by bolts; the power control device 4 is fixed on the upper side of the U-shaped main cover plate 11; the transmission rack device 3 is connected between the power control device 4 and the sliding protective cover 2, and is used to drive the sliding protective cover 2 to extend and retract along the axial direction of the U-shaped main cover plate 11 to both sides thereof.

[0022] The power control device 4 drives the transmission rack device 3, which drives the two sliding protective covers 2 to slide telescopically to the left and right sides of the protective cover body 1. This changes the width of the tool clamping type protective device, thereby adapting to loader front-end tools of different widths.

[0023] In some embodiments, the protective cover body 1 is further connected to a license plate bracket 6 and a power control box cover 7, wherein the reference Figure 15 As shown, the license plate bracket 6 is a bent sheet metal part and riveted to the protective cover body 1 by rivets; Figure 16 As shown, the power control box cover 7 is a bent sheet metal part with a mounting through hole opened on the bent edge, and is fastened to the protective cover body 1 by bolts.

[0024] In some embodiments, reference Figure 13 As shown, the power control device 4 includes a reduction motor 41, an extension control button 42, a retraction control button 43, a mobile power supply 44, and a controller 45. The drive controller 45 and mobile power supply 44 are installed in the power control box 15. The reduction motor 41 is bolted to the reduction motor mounting base 14. The reduction motor mounting base 14 is a bent and welded component with a reduction motor mounting hole. The reduction motor 41 is inverted on the U-shaped main cover plate 11 through the reduction motor mounting hole. Its output end is connected to the drive gear 35 that mates with the transmission rack device 3. The front panel of the reduction motor mounting base 14 has mounting holes for the forward and reverse control buttons of the reduction motor 41. The extension control button 42 and retraction control button 43 are installed in the button holes of the reduction motor mounting base 14. The reduction motor 41, extension control button 42, retraction control button 43, mobile power supply 44, drive controller 45, wide-view light strip I 110, and wide-view light strip II 25 are connected by a wiring harness.

[0025] In some embodiments, reference Figures 11 to 12 As shown, the transmission rack assembly 3 includes two transmission racks 31 arranged rotationally symmetrically about a drive gear 35. Both transmission racks 31 are simultaneously meshed with the drive gear 35 to achieve power transmission. The transmission rack 31 includes a transmission rack plate 311. The transmission rack plate 311 is a machined component. One end of the transmission rack plate 311 extends toward the center of the two transmission racks 31 to form an extension plate. The extension plate is provided with guide mounting posts 312 connected to the sliding protective cover 2. The guide mounting posts 312 on the two transmission rack plates 311 are located on the same axis to ensure that the sliding protective covers 2 on the left and right sides of the protective cover body 1 are aligned in the same plane. When the drive gear 35 rotates, the two transmission racks 31 can simultaneously drive the sliding protective covers 2 on the left and right sides of the protective cover body 1 to extend or retract to the sides, improving the adaptability of the tool clamping type protective device to the width of the loader tool.

[0026] In some embodiments, reference Figures 5 to 7As shown, the U-shaped main cover plate 11 is a bent sheet metal part. An upper guide groove is provided on the upper side of the U-shaped main cover plate 11. The guide mounting column 312 on the transmission rack plate 311 passes through the upper guide groove and is connected to the top of the sliding protective cover 2, and the guide mounting column 312 is slidably connected to the upper guide groove. Specifically, the guide mounting column 312 is a machined part with a welding base processed at one end and a fastening thread processed at the other end. A guide copper sleeve 32 and a guide bolt 34 are connected to the guide mounting column 312, and the guide mounting column 312 is slidably connected to the upper guide groove through the guide copper sleeve 32. The guide bolt 34 is fastened to the sliding protective cover 2 by a fixing nut 33. A lower guide groove is provided on the lower side of the U-shaped main cover plate 11, and the bottom of the sliding protective cover 2 is slidably connected to the lower guide groove through the guide copper sleeve 32 and the guide bolt 34.

[0027] The top of the U-shaped main cover plate 11 is also connected to a plurality of transmission rack guide seats 16, which are symmetrically arranged on both sides of the reduction motor 41 and distributed axially along the U-shaped main cover plate 11. The bottom of the transmission rack plate 311 is provided with a guide shaft 313 that is slidably connected to the transmission rack guide seats 16. The transmission rack guide seats 16 are machined parts and are 3 / 4 cylindrical guide seats.

[0028] Two parallel long track plates 13 are provided inside the U-shaped main cover plate 11, and a number of evenly distributed reinforcing ribs 17 are welded between the outer side of the long track plates 13 and the U-shaped main cover plate 11. The front side of the U-shaped main cover plate 11 is also connected to a wide-view light strip I 110.

[0029] In some embodiments, reference Figure 10 As shown, the sliding protective cover 2 comprises a U-shaped cover plate 21, a thin, bent plate with two sets of coaxial through-holes on its upper and lower sides. Two vertically centered support pin locating holes are provided on the front side of the U-shaped cover plate 21. The support pin locating holes on the U-shaped cover plate 21 connect to support pins 22, which are fitted with ceramic bearings 23 that slide in engagement with the long track plate 13. The ceramic bearings 23 are positioned on their outer sides with retaining springs 24. A wide-angle light strip II 25 is also provided on the front side of the U-shaped cover plate 21.

[0030] In some embodiments, reference Figures 8 and 9 As shown, the mounting frame 12 is a bent sheet metal component with a U-shaped fork structure. Its 90° double-sided bends enhance its rigidity and bending resistance. A tongue is located on its inner side, and a slot is provided on the side of the U-shaped main cover plate 11 to match the tongue. The tongue on the mounting frame 12 passes through the slot in the U-shaped main cover plate 11 and is welded to the front outer side of the U-shaped groove of the U-shaped main cover plate 11 and the long track plate 13, forming the main frame of the entire device.

[0031] Two opposing clamping rods 5 are connected to the end of the mounting frame 12. The clamping rods 5 include a clamping base 51, a connecting rod 52, and a locking nut 53. One end of the connecting rod 52 is connected to the clamping base 51 via a ball joint. The clamping base 51 can rotate a certain angle around the center of the ball joint, allowing the clamping base 51 to better conform to irregular or non-completely parallel clamped surfaces. Preferably, a non-slip and shock-absorbing rubber pad is integrated at the bottom of the clamping base 51 to prevent the clamping base 51 from damaging the clamped surface. The other end of the connecting rod 52 is connected to the mounting frame 12 via a locking nut 53.

[0032] Specifically, refer to Figure 14 As shown, one end of the connecting rod 52 connected to the mounting bracket 12 is a screw structure. The mounting bracket 12 is connected to the clamping rod mounting base 18, which has a vertical connection hole for the connecting rod 52 to pass through. The screw structure on the connecting rod 52 is matched with a locking nut 53 to secure it to the mounting bracket 12. During use, the locking nut 53 is loosened and the connecting rod 52 is rotated up and down along its axis. Once it reaches the desired position, the locking nut 53 is tightened again to secure the connecting rod 52 to the mounting bracket 12. This allows the tool clamping protection device to be installed on the front end of the loader tool. The connecting rod 52 allows for height adjustment, allowing it to accommodate tool front ends of varying thicknesses or heights.

[0033] The above shows and describes the basic principles, main features, and advantages of the present application. Those skilled in the art should understand that the present application is not limited to the above embodiments. The above embodiments and descriptions are merely illustrative of the principles of the present application. Various changes and improvements may be made to the present application without departing from the spirit and scope of the present application. These changes and improvements are intended to fall within the scope of the present application. The scope of protection claimed in this application is defined by the appended claims and their equivalents.

Claims

1. A clamping type protection device for implements, installed at the front end of a loader implement, characterized in that: include: The protective cover body (1) comprises a U-shaped main cover plate (11) for sleeved on the front end of a loader tool and two mounting brackets (12) connected to the U-shaped main cover plate (11) for connecting to the loader tool; Sliding protective covers (2), the number of the sliding protective covers (2) is two, and they are respectively slidably connected to the inner sides of both ends of the U-shaped main cover plate (11); a power control device (4) fixed on the upper side of the U-shaped main cover plate (11); and The transmission rack device (3) is connected between the power control device (4) and the sliding protective cover (2) and is used to drive the sliding protective cover (2) to extend and retract along the axial direction of the U-shaped main cover plate (11) toward both sides thereof.

2. The tool clamping protection device according to claim 1, characterized in that: The power control device (4) includes a controller (45) and a reduction motor (41). The reduction motor (41) is inverted on the U-shaped main cover plate (11), and its output end is connected to a driving gear (35) that cooperates with the transmission rack device (3).

3. The tool press-clip protection device according to claim 2, characterized in that: The transmission rack device (3) comprises two transmission racks (31) rotationally symmetrically arranged around the driving gear (35), the transmission rack (31) comprising a transmission rack plate (311), one end of the transmission rack plate (311) extending toward the middle of the two transmission racks (31) to form an extension plate, the extension plate being provided with a guide mounting column (312) connected to the sliding protective cover (2), and the guide mounting columns (312) on the two transmission rack plates (311) being located on the same axis.

4. The tool press-clip protection device according to claim 3, characterized in that: An upper guide groove is provided on the upper side of the U-shaped main cover plate (11), the guide installation column (312) passes through the upper guide groove and is connected to the top of the sliding protection cover (2), and the guide installation column (312) is slidably connected to the upper guide groove, and a lower guide groove is provided on the lower side of the U-shaped main cover plate (11), and the bottom of the sliding protection cover (2) is slidably connected to the lower guide groove through a guide copper sleeve (32) and a guide bolt (34).

5. The tool press-clip protection device according to claim 3, characterized in that: The top of the U-shaped main cover plate (11) is connected to a plurality of transmission rack guide seats (16) symmetrically arranged on both sides of the reduction motor (41) and distributed along the axial direction of the U-shaped main cover plate (11), and the bottom of the transmission rack plate (311) is provided with a guide shaft (313) slidably connected to the transmission rack guide seat (16).

6. The tool press-clip protection device according to claim 1, characterized in that: Two parallel long track plates (13) are provided on the inner side of the U-shaped main cover plate (11), and a reinforcing rib plate (17) is connected between the side surface of the long track plate (13) and the U-shaped main cover plate (11).

7. The tool press-clip protection device according to claim 6, characterized in that: The sliding protection cover (2) comprises a U-shaped cover plate (21), a support pin (22) is connected to the U-shaped cover plate (21), and a ceramic bearing (23) is sleeved on the support pin (22) and is in sliding engagement with the long track plate (13).

8. The tool press-clip protection device according to claim 1, characterized in that: The mounting frame (12) is a U-shaped fork structure, with an inserting tongue provided on its inner side, and a slot matching the inserting tongue is provided on the side of the U-shaped main cover plate (11), and the mounting frame (12) is fixedly connected to the U-shaped main cover plate (11) via the inserting tongue.

9. The tool press-clip protection device according to claim 8, characterized in that: The end of the mounting frame (12) is connected to a clamping rod (5), and the clamping rod (5) includes a clamping chassis (51), a connecting rod (52) and a locking nut (53). One end of the connecting rod (52) is connected to the clamping chassis (51) through a ball hinge, and the other end is connected to the mounting frame (12) through a locking nut (53).

10. A loader, characterized in that: It comprises the tool press-clip protection device as described in any one of claims 1-9.

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