Handrail frame grinding machine for agricultural machinery

Abstract

The utility model discloses an agricultural machinery handrail frame polisher which comprises a base, a supporting table is arranged at one end of the base, a positioning hole is formed in the supporting table, a plurality of positioning grooves are formed in the bottom of the positioning hole, a bearing table is installed in the positioning hole, and the top face of the bearing table is a first inclined face inclining downwards. A pressing mechanism for pressing the armrest frame on the bearing table is arranged on the supporting table; a lead screw transmission mechanism is arranged at the other end of the base, a sliding seat is connected through the lead screw transmission mechanism, a lifting mechanism is fixedly connected to the sliding seat, a mounting table is mounted on the lifting mechanism, a first bearing seat is fixed to the side, facing the supporting table, of the mounting table, and a sleeve is rotationally connected into the first bearing seat through a rotating bearing; a polishing cylinder is detachably connected into the sleeve, the inner wall of the polishing cylinder is a polishing part, and a driving mechanism for driving the sleeve to rotate is arranged on the mounting table. And after one end of the grab rail is polished, the other end of the grab rail can be polished, so that the polishing efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of grinders, in particular to an agricultural machinery handrail grinder. Background Art

[0002] like Figure 6 FIG. 2 is a schematic diagram of a handrail frame 28, which includes two handrail rods 29 and a connecting rod 30 connected between the two handrail rods. The handrail rods 29 include a long rod 31 and a short rod 32, with an obtuse angle formed between the long rod 31 and the short rod 32. When grinding the handrail rods, due to the angle between the long rod and the short rod, most handrail grinding devices are used to grind the long rod and the short rod separately, resulting in low grinding efficiency. Utility Model Content

[0003] In view of the deficiencies in the prior art, the present invention provides an agricultural machinery handrail grinder to solve the problems mentioned in the above background technology.

[0004] In order to solve the above technical problems, the present invention provides the following technical solutions:

[0005] The top surface of the supporting platform is a first inclined surface inclined downwardly, and the support platform is fixed with a clamping mechanism for pressing the armrest frame tightly against the supporting platform; a screw shaft transmission mechanism is provided at the other end of the base, and a slide seat is connected to the slide seat through the screw shaft transmission mechanism, and a lifting mechanism is fixed to the slide seat, and a mounting platform is installed on the lifting mechanism, and a first bearing seat is fixed to the side of the mounting platform facing the support platform, a sleeve is rotatably connected to the first bearing seat through a rotating bearing, a grinding cylinder is detachably connected to the sleeve, and the inner wall of the grinding cylinder is a grinding part, and a driving mechanism for driving the sleeve to rotate is provided on the mounting platform.

[0006] Preferably, the clamping mechanism includes a hydraulic cylinder installed on the support platform, a connecting sleeve connected to the telescopic end of the hydraulic cylinder, and a pressure block threadedly connected to the connecting sleeve. The bottom surface of the pressure block is a second inclined surface matching the first inclined surface, and the opposite surfaces of the first inclined surface and the second inclined surface are provided with matching pressure grooves.

[0007] In the above technical solution, the bearing platform can be detachably connected to the positioning hole of the support platform, the pressure block is threadedly connected to the connecting sleeve, the top surface of the bearing platform is a first inclined surface, and the bottom surface of the pressure block is a second inclined surface that matches the first inclined surface. Therefore, according to the angle of the handrail rod, a pressure block and a bearing platform with corresponding inclined surfaces can be selected to match the angle of the handrail rod, thereby facilitating fixing the fixed end of the handrail on the bearing platform.

[0008] Preferably, the screw transmission mechanism includes a second bearing seat connected to both ends of the base, a screw rotatably connected to the two second bearing seats, a guide rail installed on the base, a first motor installed at one end of the base and connected to the screw transmission, a slide seat and the guide rail are slidably connected, and the slide seat and the screw are threadedly connected.

[0009] In the above technical solution, the first motor is started to drive the screw to rotate. During the rotation of the screw, the slide moves along the guide rail, thereby driving the grinding cylinder in the sleeve to move toward the support platform to grind the handrail.

[0010] Preferably, the lifting mechanism includes two cylinders installed on the base, and the telescopic ends of the two cylinders are connected to the bottom of the mounting platform.

[0011] The above technical solution can drive the mounting platform to rise and fall by controlling the operation of the cylinder, thereby aligning the grinding cylinder with the handrail.

[0012] Preferably, the driving mechanism includes a second motor mounted on the mounting platform, a transmission shaft connected to the second motor via a coupling, a main gear connected to the transmission shaft, and a sub-gear connected to the sleeve, wherein the main gear is meshed with the sub-gear.

[0013] The above technical solution starts the second motor, which can drive the grinding cylinder to rotate through the cooperation of the main gear and the sub-gear to grind the handrail.

[0014] Preferably, the sleeve is provided with a mounting groove on one side facing the support platform, a screw hole is provided on the mounting groove, and a mounting ear is provided at one end of the grinding cylinder, and the mounting ear is fixed in the mounting groove by a bolt.

[0015] According to the above technical solution, the grinding cylinder of corresponding model can be replaced by adjusting the diameter of the handrail.

[0016] Preferably, the grinding part is a sanding belt or a grinding stone fixed to the inner wall of the grinding cylinder.

[0017] Compared with the prior art, the present invention has the following beneficial effects:

[0018] (1) One end of the handrail rod is pressed tightly against the supporting platform by a clamping mechanism, so that the other end is in a horizontal state and faces the grinding cylinder. The slide is driven to move toward the supporting platform by a screw transmission mechanism, and the sleeve is driven to rotate by a driving mechanism, which drives the grinding cylinder to rotate. The grinding cylinder is inserted along the periphery of the handrail rod and grinds the handrail rod while moving. When one end of the handrail rod is polished, the polished end is fixed on the supporting platform again. At this time, the unpolished end is horizontally facing the grinding cylinder, and the unpolished end of the handrail rod is then polished by the grinding cylinder, thereby improving the grinding efficiency.

[0019] (2) The supporting platform and the pressure block can be replaced according to the angle of the handrail, and the grinding cylinder can be replaced according to the diameter of the handrail. In addition, the slide is connected to the base through a screw transmission mechanism, so it can adapt to handrails of different lengths, different angles and different diameters, thereby improving the adaptability of grinding. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 A schematic diagram of the present utility model;

[0021] Figure 2 It is a cross-sectional view of the utility model;

[0022] Figure 3 is a cross-sectional view of the driving mechanism;

[0023] Figure 4 This is a schematic diagram of grinding the long pole of the handrail;

[0024] Figure 5 This is a schematic diagram of grinding the short rod of the handrail;

[0025] Figure 6 This is a schematic diagram of the handrail;

[0026] In the figure: 1-base, 2-support platform, 3-positioning hole, 4-bearing platform, 5-positioning rod, 6-first inclined surface, 7-slide, 8-mounting platform, 9-first bearing seat, 10-rotating bearing, 11-sleeve, 12-grinding cylinder, 13-grinding part, 14-hydraulic cylinder, 15-connecting sleeve, 16-pressing block, 17-second inclined surface, 18-second bearing seat, 19-screw, 20-guide rail, 21-first motor, 22-cylinder, 23-second motor, 24-main gear, 25-second gear, 26-mounting slot, 27-mounting ear, 28-handrail, 29-handrail, 30 connecting rod, 31-long rod, 32-short rod. DETAILED DESCRIPTION

[0027] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0028] Example 1

[0029] See also Figure 1-3A handrail grinding machine for agricultural machinery includes a base 1, a support platform 2 is provided at one end of the base 1, a positioning hole 3 is provided on the support platform 2, a plurality of positioning grooves are provided at the bottom of the positioning hole 3, a bearing platform 4 is installed in the positioning hole 3, a positioning rod 5 is provided on the bottom surface of the bearing platform 4 to cooperate with the positioning groove, the bearing platform 4 is fixed in the positioning hole 3 by the cooperation between the positioning rod 5 and the positioning groove, the top surface of the bearing platform 4 is a first inclined surface 6 inclined downward, and a clamping mechanism for pressing the handrail tightly against the bearing platform 4 is provided on the support platform 2. Specifically, the clamping mechanism includes a hydraulic cylinder 14 installed on the support platform, a connecting sleeve 15 connected to the telescopic end of the hydraulic cylinder, and a pressure block 16 threadedly connected to the connecting sleeve. The bottom surface of the pressure block 16 is a second inclined surface 17 matching the first inclined surface, and the opposite surfaces of the first inclined surface 6 and the second inclined surface 17 are provided with matching pressing grooves (not shown in the drawings). The pressing grooves can increase the contact area with the handrail and improve the stability of the handrail.

[0030] The support platform 4 is used to support the handrail, and the pressing mechanism is used to press the handrail against the support platform 4. The support platform 4 is detachably connected to the positioning hole 3 of the support platform 2. The pressing block 16 is threadedly connected to the connecting sleeve 15. The top surface of the support platform 4 is the first inclined surface 6, and the bottom surface of the pressing block 16 is the second inclined surface 17 that matches the first inclined surface. Therefore, according to the angle of the handrail, the pressing block 16 and the support platform 4 with corresponding inclined surfaces can be selected to match the angle of the handrail. This ensures that after one end of the handrail is fixed to the support platform 4, the other end is in a horizontal state.

[0031] The other end of the base 1 is provided with a screw transmission mechanism, which is connected to the slide 7 via the screw transmission mechanism. Specifically, the screw transmission mechanism includes second bearing blocks 18 connected to both ends of the base, a screw 19 rotatably connected to the two second bearing blocks, a guide rail 20 mounted on the base, and a first motor 21 mounted at one end of the base and transmission-connected to the screw. The slide 7 is slidably connected to the guide rail 20, and the slide 7 is threadedly connected to the screw 19. When the first motor 21 is activated, the screw 19 rotates, and the slide 7 moves along the guide rail 20 during the rotation of the screw 19.

[0032] The slide 7 is fixedly connected to a lifting mechanism, on which a mounting platform 8 is mounted. Specifically, the lifting mechanism includes two cylinders 22 mounted on a base, and the telescopic ends of the two cylinders 22 are connected to the bottom of the mounting platform 8. By controlling the operation of the cylinders 22, the mounting platform 8 can be driven up and down, thereby aligning the grinding cylinder 12 with the handrail.

[0033] A first bearing seat 9 is fixed to the side of the mounting platform 8 facing the support platform. A sleeve 11 is rotatably connected to the first bearing seat 9 via a rotary bearing 10. A grinding cylinder 12 is detachably connected to the sleeve 11. The inner wall of the grinding cylinder 12 is a grinding portion 13. The grinding portion 13 is an abrasive belt fixed to the inner wall of the grinding cylinder. A driving mechanism for driving the sleeve 11 to rotate is provided on the mounting platform 8. Specifically, the driving mechanism includes a second motor 23 mounted on the mounting platform, a transmission shaft connected to the second motor through a coupling, a main gear 24 connected to the transmission shaft, and a sub-gear 25 connected to the sleeve, wherein the main gear 24 meshes with the sub-gear 25. When the second motor 23 is started, the cooperation between the main gear 24 and the sub-gear 25 can drive the grinding cylinder 12 to rotate so as to grind the handrail.

[0034] The sleeve 11 has a mounting groove 26 on one side facing the support platform, and a screw hole is provided on the mounting groove 26. One end of the grinding cylinder 12 is provided with a mounting ear 27, and the mounting ear 27 is fixed in the mounting groove 26 by a bolt. In order to select the corresponding model of grinding cylinder according to the diameter of the handrail.

[0035] In addition, the supporting platform and the pressure block can be replaced according to the angle of the handrail rod, and the grinding cylinder can be replaced according to the diameter of the handrail rod. Moreover, the slide is connected to the base through a screw transmission mechanism, so it can adapt to handrail rods of different lengths, different angles and different diameters, thereby improving the adaptability of grinding.

[0036] The working principle of this embodiment is:

[0037] like Figure 4 As shown, the short rod 32 of the handrail rod 29 is pressed tightly against the supporting platform 4 through the clamping mechanism, so that the long rod 31 is in a horizontal state and faces the grinding cylinder 12, and the slide 7 is driven to move toward the support platform 2 through the screw transmission mechanism, and the sleeve 11 is driven to rotate through the driving mechanism, which drives the grinding cylinder 12 to rotate. The grinding cylinder 12 is inserted along the outer periphery of the long rod 31, and the long rod is ground while moving until the long rod is completely ground.

[0038] like Figure 5 As shown, after the long rod 31 is polished, the long rod 31 is fixed on the supporting platform 4. At this time, the short rod 32 is horizontally facing the polishing cylinder 12, and then the short rod is polished by the polishing cylinder 12, which improves the polishing efficiency.

[0039] Example 2

[0040] This embodiment is different from the first embodiment in that the grinding portion 13 is a grinding stone fixed to the inner wall of the grinding cylinder.

[0041] It should be noted that the terms "comprises," "includes," or any other variations thereof are intended to encompass non-exclusive inclusion, such that a process, method, article, or apparatus that includes a series of elements includes not only those elements but also other elements not explicitly listed, or elements inherent to such process, method, article, or apparatus. In the absence of further limitations, an element defined by the phrase "comprises a ..." does not preclude the presence of other identical elements in the process, method, article, or apparatus that includes the element.

[0042] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An agricultural machinery handrail grinding machine, characterized in that: The invention comprises a base (1), one end of the base (1) is provided with a support platform (2), a positioning hole (3) is provided on the support platform (2), a plurality of positioning grooves are provided at the bottom of the positioning hole (3), a bearing platform (4) is installed in the positioning hole (3), a positioning rod (5) matched with the positioning groove is provided on the bottom surface of the bearing platform (4), the bearing platform (4) is fixed in the positioning hole (3) by the matching of the positioning rod (5) and the positioning groove, the top surface of the bearing platform (4) is a first inclined surface (6) inclined downward, and a pressing mechanism for pressing the handrail frame tightly against the bearing platform (4) is provided on the support platform (2); The other end of the seat (1) is provided with a screw transmission mechanism, and is connected to a slide seat (7) through the screw transmission mechanism. The slide seat (7) is fixedly connected to a lifting mechanism, and a mounting platform (8) is installed on the lifting mechanism. A first bearing seat (9) is fixed on the side of the mounting platform (8) facing the support platform. A sleeve (11) is rotatably connected in the first bearing seat (9) through a rotary bearing (10). A grinding cylinder (12) is detachably connected in the sleeve (11). The inner wall of the grinding cylinder (12) is a grinding portion (13). A driving mechanism for driving the sleeve (11) to rotate is provided on the mounting platform (8).

2. The agricultural machinery handrail grinding machine according to claim 1, characterized in that: The pressing mechanism comprises a hydraulic cylinder (14) mounted on a support platform, a connecting sleeve (15) connected to the telescopic end of the hydraulic cylinder, and a pressing block (16) threadedly connected to the connecting sleeve. The bottom surface of the pressing block (16) is a second inclined surface (17) matching the first inclined surface, and the opposing surfaces of the first inclined surface (6) and the second inclined surface (17) are provided with matching pressing grooves.

3. The agricultural machinery handrail grinding machine according to claim 2, characterized in that: The screw transmission mechanism comprises a second bearing seat (18) connected to both ends of the base, a screw (19) rotatably connected to the two second bearing seats, a guide rail (20) installed on the base, a first motor (21) installed at one end of the base and connected to the screw, a slide (7) slidably connected to the guide rail (20), and a slide (7) threadedly connected to the screw (19).

4. The agricultural machinery handrail grinding machine according to claim 3, characterized in that: The lifting mechanism comprises two cylinders (22) mounted on a base, and the telescopic ends of the two cylinders (22) are connected to the bottom of the mounting platform (8).

5. The agricultural machinery handrail grinding machine according to claim 4, characterized in that: The driving mechanism comprises a second motor (23) mounted on a mounting platform, a transmission shaft connected to the second motor via a coupling, a main gear (24) connected to the transmission shaft, and a sub-gear (25) connected to the sleeve, wherein the main gear (24) is meshed with the sub-gear (25).

6. The agricultural machinery handrail grinding machine according to claim 5, characterized in that: The sleeve (11) is provided with a mounting groove (26) on one side facing the support platform, and a screw hole is provided on the mounting groove (26). One end of the grinding cylinder (12) is provided with a mounting ear (27), and the mounting ear (27) is fixed in the mounting groove (26) by a bolt.

7. The agricultural machinery handrail grinding machine according to any one of claims 1 to 6, characterized in that: The grinding part (13) is a sanding belt or a grinding stone fixed on the inner wall of the grinding cylinder.

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