A processing and polishing device and method for the roller shaft head of a straw baler

Abstract

The present invention belongs to the technical field of grinding and polishing equipment, and discloses a processing and polishing device for the shaft head of a straw baler roller and a method thereof; wherein the processing and polishing device for the shaft head of a straw baler roller comprises a main frame, a lower table is fixedly installed at a lower position inside the main frame, a main rotating shaft is rotatably installed on the lower table, a four-jaw chuck for clamping the shaft head of the roller is fixedly installed on the top of the main rotating shaft, a shaft end passive polishing assembly is installed on the main frame above the four-jaw chuck, and a shaft body polishing assembly is installed on the main frame on the outside of the four-jaw chuck; a synchronous height-adjustable multi-disc polishing assembly is arranged on the outside of the main rotating shaft; the shaft end passive polishing assembly in the present invention is used for grinding and polishing the upper top surface of the roller shaft head; the shaft body polishing assembly is used for grinding and polishing the shaft body of the roller shaft head; the synchronous height-adjustable multi-disc polishing assembly is used for grinding and polishing the flange on the roller shaft head, thereby improving the production rate.

Description

Technical Field

[0001] The invention belongs to the technical field of grinding and polishing equipment, and in particular relates to a processing and polishing device for a straw baler roller shaft head and a method thereof. Background Art

[0002] A straw baler is a key agricultural machinery equipment, mainly used to pick up straw scattered in the field and roll it into tight bales for easy storage, transportation and subsequent use; the baling chamber of existing straw balers is mostly a cylindrical chamber, and the baling chamber is composed of multiple rollers and side shell side panels. The multiple rollers rotate in the same direction to roll and press the straw into tight bales.

[0003] The two ends of the roller are rotatably connected to the side plates of the outer shell through the roller shaft heads. The patent application number is CN201910362645.2, which discloses a roller installation structure of a baler, including a roller bearing, a roller, a roller end cover, a sprocket shaft, a nut plate and a sealing ring; the roller bearing is arranged on the outer side of the outer shell side plate, the nut plate is arranged on the inner side of the outer shell side plate, the sprocket shaft passes through the inner ring of the roller bearing and the inner oil seal in sequence, and the inner end of the sprocket shaft is fixedly connected to the roller end cover; the sealing ring is sleeved on the outside of the nut plate, and a thread groove is provided on its outer wall. The thread rotation direction of the thread groove from the inside to the outside of the sealing ring is consistent with the running direction of the roller when working, and the outer wall of the sealing ring with the thread groove and the clearance between the cylinder wall of the roller form a movable seal.

[0004] It can be seen that the sprocket shaft is integrally connected with a flange, and the sprocket shaft is fixedly connected to the roller end covers at both ends of the roller by bolts passed through the flange, and the sprocket shaft is rotatably connected to the side plates of the outer shell. The above-mentioned sprocket shaft is the roller shaft head at both ends of the roller, and the flange is the flange on the roller shaft head. In order to ensure that the roller shaft head has good surface smoothness, the roller shaft head needs to be polished during the production process. During the processing, the staff needs to grind the shaft column end face, outer peripheral surface and flange outer peripheral surface of the roller shaft head one by one. Therefore, the roller needs to be adjusted repeatedly during the polishing operation. The posture and position of the shaft head, and each posture change is accompanied by the positioning calibration of the workpiece, resulting in discontinuous process connection and interruption of the overall processing rhythm. Especially for the alternating polishing of complex geometric surfaces, workers need to constantly switch operating postures, which makes it difficult to form a standard flow operation and restricts mass production capacity. In addition, during the frequent adjustment and polishing process, it is difficult for operators to maintain the ideal posture and pressure every time, which is prone to human errors. Especially in complex structures and hard-to-reach areas, adjustments are more difficult and insufficient or excessive polishing is prone to occur, resulting in poor consistency in polishing quality. Summary of the Invention

[0005] The technical problem to be solved by the present invention is to provide a processing and polishing device and method for the roller shaft head of a straw baler, in which the roller shaft head to be polished is stably fixed on the upper end of the main rotating shaft by a four-jaw chuck, and a synchronous height-adjustable multi-disc polishing assembly is pressed on the upper surface of the flange on the roller shaft head. The passive polishing assembly at the shaft end contacts the top end of the shaft body of the roller shaft head, and the shaft body polishing assembly contacts the shaft body of the roller shaft head. The main rotating shaft, the four-jaw chuck and the roller shaft head are driven by a rotating drive unit to rotate at high speed. At this time, the flange, shaft body and shaft top of the roller shaft head are synchronously polished to solve the problems raised in the above background technology.

[0006] In order to solve the above technical problems, the present invention provides the following technical solutions:

[0007] A processing and polishing device for the roller shaft head of a straw baler comprises a main frame, a lower plate fixedly mounted at a lower position inside the main frame, a main rotary shaft rotatably mounted on the lower plate, a four-jaw chuck fixedly mounted on the top end of the main rotary shaft for clamping the roller shaft head, a shaft end passive polishing assembly mounted on the main frame above the four-jaw chuck, a shaft body polishing assembly mounted on the main frame outside the four-jaw chuck; and a synchronous height-adjustable multi-disc polishing assembly disposed on the outside of the main rotary shaft.

[0008] The synchronous height-adjustable multi-disc polishing assembly includes an upper mounting plate sleeved on the outside of the main rotating shaft, the upper mounting plate is fixedly mounted on the main frame, and multiple polishing shafts are movably mounted in a ring-shaped manner with equal spacing near the edge of the upper mounting plate. The upper ends of the polishing shafts can be detachably mounted with a first grinding disc, and an adjustment component for driving the polishing shaft to move up and down is provided on the lower plate.

[0009] The following is a further optimization of the above technical solution by the present invention:

[0010] The outside of the polishing shaft is provided with a hollow shaft, the hollow shaft and the polishing shaft are slidably and transmission-connected, the upper end of the hollow shaft is rotationally connected to the upper mounting plate, the hollow shaft and the main rotating shaft are transmission-connected through a gear set, and the rotation of the main rotating shaft drives the hollow shaft and the polishing shaft to rotate synchronously.

[0011] Further optimization: the gear set includes a driven gear fixedly mounted on the outer surface of the hollow rotating shaft, an external gear sleeve fixedly mounted on the outer surface of the main rotating shaft, and the external gear sleeve and the driven gear are meshed with each other.

[0012] Further optimization: the adjustment component includes at least one Z-axis screw electric linear module fixedly mounted on the lower platen, a lower support ring is mounted on the movable end of the Z-axis screw electric linear module, and the bottom end of the polishing shaft is rotatably connected to the top end of the lower support ring.

[0013] Further optimization: a plurality of telescopic columns are installed between the upper surface of the lower supporting ring and the lower surface of the upper mounting plate; the plurality of telescopic columns are arranged in a circular shape with equal intervals.

[0014] Further optimization: a rotary drive unit is provided under the lower platen, and the power output end of the rotary drive unit is connected to the lower end of the main rotary shaft. The rotary drive unit is started to drive the main rotary shaft to rotate the four-jaw chuck and the clamped roller shaft head.

[0015] Further optimization: The shaft end passive polishing assembly includes a Z-axis automatic telescopic rod installed on the top of the main frame, a slide is installed on the telescopic end of the Z-axis automatic telescopic rod, and a second grinding disc is detachably installed on the lower surface of the slide, and the second grinding disc is coaxially arranged with the main rotating shaft.

[0016] Further optimization: the shaft body polishing assembly includes a beam arranged on the outer wall of the main frame below the slide, a Y-axis automatic telescopic rod installed on the outer wall on one side of the beam, a first-level support plate installed on the telescopic end of the Y-axis automatic telescopic rod, a second-level support plate elastically installed on the outer wall on the side of the first-level support plate away from the beam, a trapezoidal concave plate integrally formed on the outer wall on one side of the secondary support plate, and a sandpaper layer is detachably installed on the side of the trapezoidal concave plate away from the secondary support plate.

[0017] Further optimization: a plurality of support rods are fixedly installed on the back of the secondary support plate, and the other ends of the support rods slide through the primary support plate and the crossbeam respectively, and a top spring is sleeved on the support rod between the primary support plate and the secondary support plate.

[0018] The present invention also provides a method for processing and polishing the shaft head of a straw baler roller, which is based on the above-mentioned processing and polishing device for the shaft head of a straw baler roller, and includes the following steps:

[0019] S101: Check whether all parts of the processing and polishing device for the roller shaft head of the straw baler are in good condition, then clamp one end of the roller shaft head on the four-jaw chuck to ensure that the roller shaft head has no radial deviation. After clamping, the staff sets the polishing parameters according to the size specifications of the roller shaft head and the polishing requirements, including the rotation speed of the rotary drive unit, the downward pressure stroke of the synchronous height-adjustable multi-disc polishing assembly, the downward pressure stroke of the shaft end passive polishing assembly, and the feed rate of the shaft body polishing assembly;

[0020] S102: After debugging is completed, the rotation drive unit is started to make the main rotary shaft, four-jaw chuck and roller shaft head reach the preset high-speed rotation state, the synchronous height-adjustable multi-disc polishing assembly is started to fully polish the upper surface of the flange of the roller shaft head; the shaft end passive polishing assembly is started to grind and polish the upper top surface of the roller shaft head; the shaft body polishing assembly is started to grind and polish the shaft body of the roller shaft head;

[0021] S103: After polishing is completed, the staff turns off the rotary drive unit to stop the main rotary shaft, the four-jaw chuck, and the roller shaft head, and resets the synchronous height-adjustable multi-disc polishing assembly, the shaft end passive polishing assembly, and the shaft body polishing assembly. The roller shaft head is removed from the four-jaw chuck and a surface inspection is performed.

[0022] S104: After polishing, the staff cleans and maintains the entire device to ensure that the device is in good working condition and is ready for the next operation.

[0023] The present invention adopts the above technical solution, which has at least the following beneficial effects:

[0024] 1. The rotary drive unit, main rotary shaft, four-jaw chuck, synchronous height-adjustable multi-disc polishing assembly, shaft end passive polishing assembly and shaft body polishing assembly in the present invention work in coordination with each other to grind and polish the roller shaft head to be polished, so that the flange, shaft body and shaft top of the roller shaft head can be polished synchronously, so that the entire polishing process can be completed in a relatively short time, and the tedious steps of traditional surface-by-surface polishing are avoided. The present invention is suitable for mass production, so that the roller shaft head can be polished consistently, thereby improving the polishing quality.

[0025] 2. The four-jaw chuck in the present invention can stably clamp the roller shaft head, ensure the position accuracy of the roller shaft head during high-speed rotation, and avoid the problem of uneven polishing due to vibration or offset. The synchronous height-adjustable multi-disc polishing assembly, the shaft end passive polishing assembly and the shaft body polishing assembly cover the flange, shaft top and shaft body of the roller shaft head, ensuring that the three key areas can be evenly and fully polished. In particular, the synchronous height-adjustable multi-disc polishing assembly pressed above the roller shaft head flange can adjust the contact pressure according to different surface characteristics to ensure that each surface can obtain an ideal polishing effect. The shaft end passive polishing assembly contacts the top of the shaft body to make the polishing pressure more uniform, reduce local over-polishing or insufficient polishing, thereby significantly improving the surface smoothness and neatness. During the polishing process, all polishing surfaces are in synchronous high-speed rotation, and the polishing pressure and friction applied to the surface tend to be consistent, avoiding the problems of local unevenness or uneven gloss that occur in traditional manual or single-sided polishing, so that each polishing can achieve the expected effect.

[0026] 3. The spatial layout of multiple polishing assemblies in the present invention realizes the synchronous grinding and polishing operation of the flange, shaft body and shaft top of the roller shaft head, eliminating the time loss of repeated disassembly and adjustment in traditional processes. The main rotary shaft drives the roller shaft head to rotate continuously so that each polishing surface always maintains dynamic contact with the grinding surface, avoiding idling waiting caused by process switching. The rigid clamping of the four-jaw chuck cooperates with the high-speed rotation to ensure the efficient operation of the grinding and polishing process, thereby improving the production rate and grinding and polishing quality.

[0027] The present invention will be further described below with reference to the accompanying drawings and examples. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 Schematic diagram of the three-dimensional structure of Example 1 of the present invention Figure 1 ;

[0029] Figure 2 Schematic diagram of the three-dimensional structure of Example 1 of the present invention Figure 2 ;

[0030] Figure 3 Schematic diagram of the three-dimensional structure of Example 1 of the present invention Figure 3 ;

[0031] Figure 4 This is a front view of the overall structure of Example 1 of the present invention;

[0032] Figure 5 is a cross-sectional view of the overall structure of Example 1 of the present invention;

[0033] Figure 6 A perspective view of the overall structure of Example 1 of the present invention;

[0034] Figure 7 A three-dimensional cross-sectional view of the overall structure of Example 1 of the present invention

[0035] Figure 8 Schematic diagram of the structure of the synchronous height-adjustable multi-disc polishing assembly in Example 1 of the present invention;

[0036] Figure 9 This is a cross-sectional view of the assembly of the polishing shaft and the hollow shaft in Example 1 of the present invention;

[0037] Figure 10 This is a schematic structural diagram of the passive polishing assembly for the shaft end in Example 1 of the present invention;

[0038] Figure 11 Schematic diagram of the structure of the shaft body polishing assembly in Example 1 of the present invention;

[0039] Figure 12 This is a three-dimensional diagram of the overall structure in Example 2 of the present invention.

[0040] In the figure: 1-main frame; 2-lower plate; 3-rotation drive unit; 301-reduction motor; 302-motor frame; 4-main rotary axis; 5-four-jaw chuck; 6-synchronous height-adjustable multi-disc polishing assembly; 601-Z-axis screw electric linear module; 602-upper mounting plate; 6021-hollow shaft sleeve; 603-lower support ring; 6031-lower shaft head sleeve; 604-telescopic column; 605-external gear sleeve; 606-polishing shaft; 607-hollow shaft; 60 8-driven gear; 609-first grinding disc; 610-lifting and adjusting telescopic rod; 7-PLC control panel; 8-axle end passive polishing assembly; 801-Z-axis automatic telescopic rod; 802-slide; 803-second grinding disc; 9-axle body polishing assembly; 901-crossbeam; 902-Y-axis automatic telescopic rod; 903-first support plate; 904-secondary support plate; 905-trapezoidal concave plate; 906-sandpaper layer; 907-support rod; 908-top spring. DETAILED DESCRIPTION

[0041] Example 1: Figure 1-5 As shown, a processing and polishing device for the roller shaft head of a straw baler includes a main frame 1, a lower table 2 is fixedly installed at a lower position inside the main frame 1, a main rotary shaft 4 is rotatably installed on the lower table 2, a four-jaw chuck 5 for clamping the roller shaft head is fixedly installed on the top of the main rotary shaft 4, a shaft end passive polishing assembly 8 is installed on the main frame 1 above the four-jaw chuck 5, and a shaft body polishing assembly 9 is installed on the outside of the four-jaw chuck 5 on the main frame 1; a synchronous height adjustment multi-disc polishing assembly 6 is provided on the outside of the main rotary shaft 4.

[0042] With this design, the main rotating shaft 4 rotates to drive the four-jaw chuck 5 and the clamped roller shaft head to rotate, and the passive polishing assembly 8 at the shaft end is started to grind and polish the upper top surface of the roller shaft head; the shaft body polishing assembly 9 is started to grind and polish the shaft body of the roller shaft head; the synchronous height-adjusting multi-disc polishing assembly 6 is started to grind and polish the flange on the roller shaft head, which is convenient to use.

[0043] like Figure 2-5 As shown, a rotation drive unit 3 is provided under the lower platen 2, and the power output end of the rotation drive unit 3 is transmission-connected to the lower end of the main rotating shaft 4. The rotation drive unit 3 is started to drive the main rotating shaft 4 to drive the four-jaw chuck 5 and the clamped roller shaft head to rotate.

[0044] The rotation drive unit 3 includes an inverted U-shaped motor frame 302 fixedly mounted on the bottom end of the lower platform 2 , a reduction motor 301 is mounted on the top of the motor frame 302 , and a drive shaft of the reduction motor 301 is fixedly connected to the bottom end of the main rotating shaft 4 .

[0045] The reduction motor 301 is started to output rotational power. At this time, the drive shaft of the reduction motor 301 is used to drive the main rotating shaft 4, the four-jaw chuck 5 and the clamped roller shaft head to rotate. The reduction motor 301 provides stable and adjustable power to enable the main rotating shaft 4 to rotate at high speed, so as to ensure the stability of pressure and friction during the polishing process and achieve comprehensive polishing.

[0046] The main rotary shaft 4 has excellent radial rigidity and axial load-bearing capacity, eliminating flexural deformation during high-speed rotation, and the four-jaw chuck 5 is compatible with the clamping of non-standard shaft heads, and the multi-directional self-centering function quickly corrects the axis of the workpiece, ensuring that the workpiece will not loosen or deviate during high-speed rotation.

[0047] like Figure 6-9 As shown, the synchronous height-adjustable multi-disc polishing assembly 6 includes an upper mounting plate 602 sleeved on the outside of the main rotating shaft 4, the upper mounting plate 602 is fixedly mounted on the main frame 1, and a plurality of polishing shafts 606 are movably mounted in a ring-shaped manner with equal intervals near the edge of the upper mounting plate 602. The upper ends of the polishing shafts 606 are all detachably mounted with a first grinding plate 609, and an adjusting component for driving the polishing shafts 606 to move up and down is provided on the lower plate 2.

[0048] In this embodiment 1, the main rotating shaft 4 is rotationally connected to the lower plate 2 and the upper mounting plate 602. The upper mounting plate 602 and the lower plate 2 can support the main rotating shaft 4 for rotation, thereby improving the stability of the main rotating shaft 4 during rotation.

[0049] In this embodiment 1, the first grinding disc 609 can be fixedly installed on the upper end of the polishing shaft 606 by fastening bolts, which facilitates the disassembly and replacement of the first grinding disc 609, and then the first grinding disc 609 can be selected and replaced in real time according to the size specifications of the roller shaft head to be polished, so that multiple first grinding discs 609 can be suitable for grinding and polishing operations on roller shaft heads of different models, thereby improving the scope of use and the effect of use.

[0050] The outside of the polishing shaft 606 is sleeved with a hollow shaft 607, which is slidably and transmission-connected to the polishing shaft 606. The upper end of the hollow shaft 607 is rotationally connected to the upper mounting plate 602. The hollow shaft 607 is transmission-connected to the main rotating shaft 4 through a gear set. The rotation of the main rotating shaft 4 drives the hollow shaft 607 and the polishing shaft 606 to rotate synchronously.

[0051] In this embodiment 1, the number of the polishing shafts 606 is set to four, and the outsides of the four polishing shafts 606 are all sleeved with hollow shafts 607, and the upper ends of the four polishing shafts 606 can be detachably installed with first grinding discs 609.

[0052] A plurality of protrusions are integrally connected to the outer surface of the polishing shaft 606, and a plurality of through slots are opened on the hollow shaft 607. The protrusions are slidably installed in the corresponding through slots. The polishing shaft 606 can be raised and lowered in the hollow shaft 607 through the cooperation between the protrusions and the through slots, so as to adjust the height position of the polishing shaft 606; and the cooperation between the protrusions and the through slots enables a transmission connection between the hollow shaft 607 and the polishing shaft 606. The rotation of the hollow shaft 607 drives the polishing shaft 606 to rotate through the cooperation between the protrusions and the through slots.

[0053] In addition to this embodiment 1, the polishing shaft 606 and the hollow shaft 607 can also be connected by splines to achieve sliding and transmission connection; an external spline is integrally connected to the outer surface of the polishing shaft 606, and an internal spline groove is provided on the inner surface of the hollow shaft 607, and the external spline and the internal spline groove achieve sliding and transmission connection.

[0054] A hollow shaft sleeve 6021 is fixedly installed at a position on the upper mounting plate 602 corresponding to the hollow rotating shaft 607. The upper end of the hollow rotating shaft 607 is rotatably installed in the hollow shaft sleeve 6021. An annular groove is provided on the inner wall of the hollow shaft sleeve 6021, and an annular flange is provided on the outer wall of the hollow rotating shaft 607. The annular flange is rotatably connected to the annular groove.

[0055] With this design, the hollow shaft 607 is rotatably mounted on the upper mounting plate 602 via the hollow shaft sleeve 6021 , which facilitates assembly and installation. The hollow shaft sleeve 6021 is used to improve the stability of the hollow shaft 607 during rotation.

[0056] In addition to the present embodiment 1, a bearing seat may be used to realize a rotational connection between the upper mounting plate 602 and the upper end of the hollow rotating shaft 607 .

[0057] The gear set includes a driven gear 608 fixedly mounted on the outer surface of the hollow rotating shaft 607, an outer gear sleeve 605 fixedly mounted on the outer surface of the main rotating shaft 4, and the outer gear sleeve 605 and the driven gear 608 are meshed with each other.

[0058] The main rotating shaft 4 rotates to drive the outer gear sleeve 605 to rotate, and the outer gear sleeve 605 is meshed with the driven gear 608. The rotation of the outer gear sleeve 605 can drive the hollow rotating shaft 607 to rotate through the transmission of the driven gear 608. The rotation of the hollow rotating shaft 607 can drive the polishing rotating shaft 606 and the first grinding disc 609 to rotate, which is convenient to use.

[0059] In this embodiment 1, the outer surface diameter of the outer gear sleeve 605 is larger than the outer surface diameter of the driven gear 608, that is, there is an acceleration transmission between the outer gear sleeve 605 and the driven gear 608, and the rotation of the main rotating shaft 4 drives the polishing shaft 606 to rotate at high speed. At this time, the rotation speed of the polishing shaft 606 is greater than the rotation speed of the main rotating shaft 4, and then the flange on the roller shaft head can be polished through the first grinding disc 609, which is convenient to use.

[0060] The adjustment assembly includes at least one Z-axis screw electric linear module 601 fixedly mounted on the lower platen 2, a lower support ring 603 is mounted on the movable end of the Z-axis screw electric linear module 601, and the bottom end of the polishing shaft 606 is rotatably connected to the top end of the lower support ring 603.

[0061] In this embodiment 1, the number of the Z-axis screw electric linear module 601 is one, and one Z-axis screw electric linear module 601 is arranged vertically. When the Z-axis screw electric linear module 601 is started, its moving end drives the lower supporting ring 603 to move up and down.

[0062] In this embodiment 1, the Z-axis lead screw electric linear module 601 is an existing technology and can be purchased directly on the market. Its specific structure includes a slide rail and a slider, and an electric lead screw module installed on the slide rail for driving the slider to move up and down.

[0063] A plurality of telescopic columns 604 are installed between the upper surface of the lower supporting ring 603 and the lower surface of the upper mounting plate 602 ; the plurality of telescopic columns 604 are arranged in a circular shape with equal intervals.

[0064] With this design, when the Z-axis screw electric linear module 601 is started to drive the lower supporting ring 603 to move up and down, the telescopic column 604 can adaptively extend or shorten. At this time, the telescopic column 604 can guide the movement of the lower supporting ring 603 to improve the use effect.

[0065] In this embodiment 1, a plurality of lower shaft head sleeves 6031 are fixedly installed on the top of the lower supporting ring 603. The lower shaft head sleeves 6031 are coaxially arranged with the corresponding polishing shaft 606. The bottom end of the polishing shaft 606 extends to the interior of the lower shaft head sleeve 6031 and rotates with the lower shaft head sleeve 6031.

[0066] This design, through the coordinated use of the hollow shaft sleeve 6021 and the lower shaft head sleeve 6031, can respectively play the purpose of stably supporting the hollow rotating shaft 607 and the polishing rotating shaft 606 for rotation, thereby improving the use effect.

[0067] In this embodiment 1, the working principle of the synchronous height-adjustable multi-disc polishing assembly 6 is as follows: first, the roller shaft head to be polished is fixedly mounted on the four-jaw chuck 5, and then the staff starts the rotation drive unit 3 and the synchronous height-adjustable multi-disc polishing assembly 6. The rotation drive unit 3 is used to drive the main rotary shaft 4 to drive the four-jaw chuck 5 and the clamped roller shaft head to rotate; the Z-axis screw electric linear module 601 is started to drive the lower support ring 603 to move up and down along the vertical direction of the main rotary shaft 4. At this time, the lower support ring 603 Drive the polishing shaft 606 and the first grinding disc 609 to move downward or upward until the lower surface of the first grinding disc 609 contacts the upper surface of the flange on the roller shaft head. When the main rotating shaft 4 and the four-jaw chuck 5 are driven to rotate by the rotation drive unit 3, the main rotating shaft 4 drives the driven gear 608 and the hollow rotating shaft 607 to rotate through the external gear sleeve 605. At this time, the hollow rotating shaft 607 and the polishing shaft 606 rotate together through the keyway, so that the first grinding disc 609 performs a grinding and polishing operation on the upper surface of the flange on the roller shaft head.

[0068] like Figure 10 As shown, the shaft end passive polishing assembly 8 includes a Z-axis automatic telescopic rod 801 installed on the top of the main frame 1. The Z-axis automatic telescopic rod 801 is arranged vertically. A slide 802 is installed on the telescopic end of the Z-axis automatic telescopic rod 801. A second grinding disc 803 is detachably installed on the lower surface of the slide 802. The second grinding disc 803 is arranged coaxially with the main rotating shaft 4.

[0069] Designed in this way, the working principle of the shaft end passive polishing assembly 8 is: the Z-axis automatic telescopic rod 801 starts to push the slide 802 and the second grinding disc 803 to move downward until the lower grinding surface of the second grinding disc 803 contacts the upper end surface of the roller shaft head. At this time, the roller shaft head is polished by the second grinding disc 803 during the rotation process, and the telescopic movement of the Z-axis automatic telescopic rod 801 can be used to adjust the contact pressure of the second grinding disc 803 on the upper end surface of the roller shaft head, thereby achieving uniform polishing operation on the upper end surface of the roller shaft head.

[0070] In this embodiment 1, the four side surfaces of the slide 802 are slidably connected to the main frame 1 through slide rails and sliders respectively. The slide rails and sliders are slidably connected, the slide rails are fixedly installed on the main frame 1, and the sliders are fixedly installed on the outer surface of the slide 802.

[0071] In this embodiment 1, the second grinding disc 803 can be detachably mounted on the lower surface of the slide 802 by bonding or bolting, so as to facilitate the disassembly and replacement of the second grinding disc 803 .

[0072] In this embodiment 1, the Z-axis automatic telescopic rod 801 adopts one of a hydraulic cylinder, a telescopic cylinder, and an electric telescopic rod.

[0073] like Figure 9-10 As shown, the shaft body polishing assembly 9 includes a beam 901 arranged on the outer wall of the main frame 1 below the slide 802, and a Y-axis automatic telescopic rod 902 installed on the outer wall of one side of the beam 901. The Y-axis automatic telescopic rod 902 is arranged horizontally, and a primary support plate 903 is installed on the telescopic end of the Y-axis automatic telescopic rod 902; when the Y-axis automatic telescopic rod 902 is started, the primary support plate 903 is driven by the telescopic end to move horizontally.

[0074] A secondary support plate 904 is elastically mounted on the outer wall of the primary support plate 903 away from the crossbeam 901 , a trapezoidal concave plate 905 is integrally formed on the outer wall of one side of the secondary support plate 904 , and a sandpaper layer 906 is detachably mounted on the side of the trapezoidal concave plate 905 away from the secondary support plate 904 .

[0075] A plurality of support rods 907 are fixedly installed on the back of the secondary support plate 904. The plurality of support rods 907 are arranged in parallel and at intervals. The other ends of the support rods 907 slide through the primary support plate 903 and the beam 901 and extend to the side of the beam 901 away from the primary support plate 903.

[0076] A top spring 908 is sleeved on the support rod 907 between the primary support plate 903 and the secondary support plate 904 ; both ends of the top spring 908 are fixedly connected to the primary support plate 903 and the secondary support plate 904 respectively.

[0077] With this design, the support rod 907 is used to guide the movement of the primary support plate 903 and the secondary support plate 904, thereby improving the stability of the primary support plate 903 and the secondary support plate 904 during movement, and the top spring 908 outputs elastic force to the primary support plate 903 and the secondary support plate 904, thereby achieving an elastic connection between the primary support plate 903 and the secondary support plate 904, which is convenient to use.

[0078] In this embodiment 1, the working principle of the shaft body polishing assembly 9 is: the Y-axis automatic telescopic rod 902 is started to drive the first-level support plate 903, the second-level support plate 904, and the sandpaper layer 906 to move toward the roller shaft head through the telescopic end until the sandpaper layer 906 contacts the outer wall surface of the roller shaft head. At this time, the sandpaper layer 906 is in close contact with the outer wall surface of the workpiece, and the rotating roller shaft head is polished by using pressure and friction to reduce defects and unevenness of the shaft body.

[0079] In this embodiment 1, the sandpaper layer 906 can be detachably mounted on the secondary support plate 904 by bonding or bolting, so that the sandpaper layer 906 can be easily disassembled and replaced.

[0080] In this embodiment 1, the Y-axis automatic telescopic rod 902 adopts one of a hydraulic cylinder, a telescopic cylinder, and an electric telescopic rod.

[0081] like Figure 1-11 As shown, a PLC control panel 7 is installed on the outer wall of one side of the main frame 1, and the control output end of the PLC control panel 7 is electrically connected to the control input end of the rotation drive unit 3, the synchronous height adjustment multi-disc polishing assembly 6, the shaft end passive polishing assembly 8 and the shaft body polishing assembly 9 respectively.

[0082] In this embodiment 1, the PLC control panel 7 is a prior art, and its overall structure includes a PLC controller. The output and input ends of the PLC controller are bidirectionally electrically connected to a control screen, which is used to display control parameters and adjust the control parameters.

[0083] The PLC control panel 7 outputs a control signal for controlling the rotation drive unit 3 to start or stop. At this time, the reduction motor 301 starts to drive the main rotating shaft 4 to rotate at a set speed, and the main rotating shaft 4 drives the clamped roller shaft head to rotate through the four-jaw chuck 5.

[0084] The PLC control panel 7 outputs a control signal for controlling the start-up of the Z-axis screw electric linear module 601 of the synchronous height-adjustable multi-disc polishing assembly 6. At this time, the Z-axis screw electric linear module 601 works at the set lifting distance and direction. The Z-axis screw electric linear module 601 is started to drive the lower support ring 603 to move up and down along the vertical direction of the main rotating shaft 4. The lower support ring 603 drives the polishing shaft 606 and the first grinding disk 609 to move up and down, so that the lower surface of the first grinding disk 609 contacts the upper surface of the flange on the roller shaft head. At this time, the upper surface of the flange on the roller shaft head is ground and polished by the first grinding disk 609.

[0085] The PLC control panel 7 outputs a control signal for controlling the start-up of the Z-axis automatic telescopic rod 801 of the shaft end passive polishing assembly 8. At this time, the Z-axis automatic telescopic rod 801 works at the set lifting distance and direction. The Z-axis automatic telescopic rod 801 is started to push the slide 802 and the second grinding disc 803 to move downward until the lower grinding surface of the second grinding disc 803 contacts the upper end surface of the roller shaft head. At this time, the roller shaft head is polished by the second grinding disc 803 during the rotation process.

[0086] The PLC control panel 7 outputs a control signal for controlling the start-up of the Y-axis automatic telescopic rod 902 of the shaft body polishing assembly 9. At this time, the Y-axis automatic telescopic rod 902 works at the set telescopic distance and direction. The Y-axis automatic telescopic rod 902 starts and drives the first-level support plate 903, the second-level support plate 904 and the sandpaper layer 906 through the telescopic end to move toward the direction close to the roller shaft head until the sandpaper layer 906 contacts the outer wall surface of the roller shaft head. At this time, the sandpaper layer 906 is in close contact with the outer wall surface of the workpiece, and the rotating roller shaft head is polished by using pressure and friction to reduce defects and unevenness of the shaft body.

[0087] In this embodiment 1, the four-jaw chuck 5 is a prior art and can be purchased directly on the market, and its specific structure is not described here in detail.

[0088] like Figure 1-11 As shown, the present invention also provides a method for processing and polishing the shaft head of a straw baler roller, based on the above-mentioned processing and polishing device for the shaft head of a straw baler roller, comprising the following steps:

[0089] S101: Check whether all parts of the processing and polishing device for the roller shaft head of the straw baler are in good condition, then clamp one end of the roller shaft head on the four-jaw chuck 5 so that the roller shaft head has no radial deviation. After clamping, the staff sets the polishing parameters according to the size specifications of the roller shaft head and the polishing requirements, including the rotation speed of the rotary drive unit 3, the downward pressure stroke of the synchronous height-adjusting multi-disc polishing assembly 6, the downward pressure stroke of the shaft end passive polishing assembly 8, and the feed amount of the shaft body polishing assembly 9;

[0090] In step S101, the lubrication status of the rotary drive unit 3, the concentricity of the main rotary shaft 4, and the cleanliness of the four-jaw chuck 5 are checked to ensure that all components of the processing and polishing device for the roller shaft head of the straw baler are in good working condition.

[0091] S102: After the debugging is completed, the staff starts the rotation drive unit 3 through the PLC control panel 7, so that the main rotary shaft 4, the four-jaw chuck 5 and the roller shaft head reach the preset high-speed rotation state, and at this time the synchronous height-adjustable multi-disc polishing assembly 6 is started to perform a comprehensive polishing operation on the upper surface of the flange of the roller shaft head; the shaft end passive polishing assembly 8 is started to perform a grinding and polishing operation on the upper top surface of the roller shaft head; the shaft body polishing assembly 9 is started to perform a grinding and polishing operation on the shaft body of the roller shaft head; then the operating status of the device is observed in real time to ensure that the polishing pressure is evenly distributed to avoid local over-polishing or under-polishing.

[0092] In the step S102, the working principle of the rotation drive unit 3 is: the power output end of the reduction motor 301 is connected to the lower end of the main rotating shaft 4, and the reduction motor 301 is started to make the drive shaft output rotation, which is used to drive the main rotating shaft 4, the four-jaw chuck 5 and the clamped roller shaft head to rotate.

[0093] In the S102 step, the working principle of the synchronous height-adjustable multi-disc polishing assembly 6 is as follows: the Z-axis screw electric linear module 601 is started to drive the lower supporting ring 603 to move up and down along the vertical direction of the main rotating shaft 4. At this time, the lower supporting ring 603 drives the polishing shaft 606 and the first grinding disc 609 to move down or up until the lower surface of the first grinding disc 609 contacts the upper surface of the flange on the roller shaft head. When the main rotating shaft 4 is driven to rotate by the rotation drive unit 3, the main rotating shaft 4 drives the driven gear 608 and the hollow rotating shaft 607 to rotate through the outer gear sleeve 605. At this time, the hollow rotating shaft 607 drives the polishing rotating shaft 606 to rotate together, so that the first grinding disc 609 performs a grinding and polishing operation on the upper surface of the flange on the roller shaft head.

[0094] In the step S102, the working principle of the shaft end passive polishing assembly 8 is as follows: the Z-axis automatic telescopic rod 801 is started and works at the set lifting distance and direction, and the Z-axis automatic telescopic rod 801 is used to push the slide 802 and the second grinding disc 803 to move downward until the lower grinding surface of the second grinding disc 803 contacts the upper end surface of the roller shaft head. At this time, the roller shaft head is polished by the second grinding disc 803 during the rotation process.

[0095] In the step S102, the working principle of the shaft body polishing assembly 9 is as follows: the Y-axis automatic telescopic rod 902 is started and works in the set telescopic distance and direction, and the Y-axis automatic telescopic rod 902 drives the first-level support plate 903, the second-level support plate 904 and the sandpaper layer 906 to move toward the direction close to the roller shaft head through the telescopic end until the sandpaper layer 906 contacts the outer wall surface of the roller shaft head. At this time, the sandpaper layer 906 is in close contact with the outer wall surface of the workpiece, and the rotating roller shaft head is polished by using pressure and friction to reduce defects and unevenness of the shaft body.

[0096] S103: After polishing is completed, the staff turns off the rotation drive unit 3 through the PLC control panel 7, stops the rotation of the main rotary shaft 4, the four-jaw chuck 5 and the roller shaft head, and resets the synchronous height-adjustable multi-disc polishing assembly 6, the shaft end passive polishing assembly 8 and the shaft body polishing assembly 9, removes the roller shaft head from the four-jaw chuck 5 and performs a surface inspection.

[0097] In the step S103, the surface of the roller shaft head is smooth, without scratches or defects after polishing. The staff performs local grinding on the substandard areas as needed and cleans the polishing medium remaining on the workpiece surface.

[0098] S104: After polishing is completed, the staff cleans and maintains the entire device, removes residual polishing materials, lubricates the transmission parts of the machine, and ensures that the device is in good working condition and is ready for the next operation.

[0099] Example 2: Figure 12 As shown, based on the above embodiment 1, in this embodiment 2, the synchronous height-adjustable multi-disc polishing assembly 6 can also be used Figure 12 In the structure shown, the adjustment component of the synchronous height-adjustable multi-disc polishing assembly 6 includes at least one lifting and adjusting telescopic rod 610, the mounting end of which is fixedly mounted on the upper mounting plate 602, and the telescopic end of the lifting and adjusting telescopic rod 610 is arranged vertically downward and fixedly connected to the lower supporting ring 603.

[0100] In this embodiment 2, the lifting and adjusting telescopic rod 610 can be one. When one lifting and adjusting telescopic rod 610 is used, a plurality of telescopic columns 604 are further installed between the upper surface of the lower supporting ring 603 and the lower surface of the upper mounting plate 602; the plurality of telescopic columns 604 are arranged in a circular shape with equal intervals.

[0101] The lifting and adjusting telescopic rod 610 is activated to drive the lower supporting ring 603 to move up and down, thereby driving the polishing shaft 606 and the first grinding disc 609 to move up and down. At this time, several telescopic columns 604 cooperate to extend and retract to guide the movement of the lower supporting ring 603.

[0102] In addition to the present embodiment 2, the lifting and adjusting telescopic rod 610 can be multiple. When multiple lifting and adjusting telescopic rods 610 are used, the multiple lifting and adjusting telescopic rods 610 are arranged in a ring with equal intervals, and the mounting ends of the lifting and adjusting telescopic rods 610 are all fixedly mounted on the upper mounting plate 602; the telescopic ends of the lifting and adjusting telescopic rods 610 are fixedly connected to the lower supporting ring 603; the multiple lifting and adjusting telescopic rods 610 work synchronously to drive the lower supporting ring 603 to move up and down, thereby driving the polishing shaft 606 and the first grinding disc 609 to move up and down.

[0103] In this embodiment 2, the lifting and adjusting telescopic rod 610 adopts one of a telescopic cylinder, a hydraulic cylinder, and an electric telescopic rod.

[0104] While embodiments of the present invention have been shown and described, it will be appreciated 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 invention, and that the scope of the invention is defined by the appended claims and their equivalents.

Claims

1. A processing and polishing device for the roller shaft head of a straw baler, characterized by: It includes a main frame, a lower plate is fixedly installed at the lower position inside the main frame, a main rotary shaft is rotatably installed on the lower plate, a four-jaw chuck for clamping the roller shaft head is fixedly installed on the top of the main rotary shaft, a shaft end passive polishing assembly is installed on the main frame above the four-jaw chuck, and a shaft body polishing assembly is installed on the outside of the four-jaw chuck on the main frame; a synchronous height-adjustable multi-disc polishing assembly is provided on the outside of the main rotary shaft; the synchronous height-adjustable multi-disc polishing assembly includes an upper mounting plate sleeved on the outside of the main rotary shaft, the upper mounting plate is fixedly installed on the main frame, and the upper mounting plate has circular equidistant spacing near its edge. There are multiple polishing shafts installed movably, and the upper ends of the polishing shafts can be detachably installed with the first grinding disc, and the lower plate is provided with an adjustment component for driving the polishing shaft to move up and down; the outside of the polishing shaft is sleeved with a hollow shaft, the hollow shaft and the polishing shaft slide and are transmission-connected, the upper end of the hollow shaft is rotationally connected to the upper mounting plate, and the hollow shaft and the main rotating shaft are transmission-connected by a gear set, and the rotation of the main rotating shaft drives the hollow shaft and the polishing shaft to rotate synchronously; a hollow shaft sleeve is fixedly installed at a position corresponding to the hollow shaft on the upper mounting plate, and the upper end of the hollow shaft is rotatably installed on the hollow shaft sleeve In the embodiment, an annular groove is provided on the inner wall of the hollow shaft sleeve, an annular flange is provided on the outer wall of the hollow rotating shaft, and the annular flange is rotatably connected to the annular groove; the gear set includes a driven gear fixedly mounted on the outer surface of the hollow rotating shaft, an external gear sleeve is fixedly mounted on the outer surface of the main rotating shaft, and the external gear sleeve and the driven gear are meshed with each other; the adjustment component includes at least one Z-axis screw electric linear module fixedly mounted on the lower platen, a lower supporting ring is mounted on the movable end of the Z-axis screw electric linear module, and the bottom end of the polishing rotating shaft is rotatably connected to the top end of the lower supporting ring; the shaft end passive polishing assembly includes a shaft mounted on the main The Z-axis automatic telescopic rod is at the top of the frame, and a slide is installed on the telescopic end of the Z-axis automatic telescopic rod. A second grinding disc is detachably installed on the lower surface of the slide, and the second grinding disc is coaxially arranged with the main rotating axis; the shaft body polishing assembly includes a beam arranged on the outer wall of the main frame below the slide, a Y-axis automatic telescopic rod is installed on the outer wall of one side of the beam, a first-level support plate is installed on the telescopic end of the Y-axis automatic telescopic rod, a second-level support plate is elastically installed on the outer wall of the first-level support plate away from the beam, a trapezoidal concave plate is integrally formed on the outer wall of one side of the secondary support plate, and a sandpaper layer is detachably installed on the side of the trapezoidal concave plate away from the secondary support plate.

2. The processing and polishing device for the roller shaft head of a straw baler according to claim 1 is characterized in that: A plurality of telescopic columns are installed between the upper surface of the lower supporting ring and the lower surface of the upper mounting plate; the plurality of telescopic columns are arranged in a ring shape with equal intervals.

3. The processing and polishing device for the roller shaft head of a straw baler according to claim 2, characterized in that: A rotation drive unit is provided below the lower platen, and the power output end of the rotation drive unit is transmission-connected to the lower end of the main rotary shaft. The rotation drive unit is started to drive the main rotary shaft to rotate the four-jaw chuck and the clamped roller shaft head.

4. The processing and polishing device for the roller shaft head of a straw baler according to claim 3 is characterized in that: A plurality of support rods are fixedly installed on the back of the secondary support plate, and the other ends of the support rods slide through the primary support plate and the cross beam respectively, and a top spring is sleeved on the support rod between the primary support plate and the secondary support plate.

5. A method for processing and polishing a straw baler roller shaft head, based on the straw baler roller shaft head processing and polishing device according to any one of claims 1 to 4, characterized in that: The following steps are involved: S101: Check whether all parts of the processing and polishing device for the roller shaft head of the straw baler are in good condition, then clamp one end of the roller shaft head on the four-jaw chuck to ensure that the roller shaft head has no radial deviation. After clamping, the staff sets the polishing parameters according to the size specifications of the roller shaft head and the polishing requirements, including the rotation speed of the rotary drive unit, the downward pressure stroke of the synchronous height-adjustable multi-disc polishing assembly, the downward pressure stroke of the shaft end passive polishing assembly, and the feed rate of the shaft body polishing assembly; S102: After debugging is completed, the rotation drive unit is started to make the main rotary shaft, four-jaw chuck and roller shaft head reach the preset high-speed rotation state, and the synchronous height-adjustable multi-disc polishing assembly is started to fully polish the upper surface of the flange of the roller shaft head; The shaft end passive polishing assembly is started to grind and polish the upper top surface of the roller shaft head; the shaft body polishing assembly is started to grind and polish the shaft body of the roller shaft head; S103: After polishing is completed, the staff turns off the rotary drive unit to stop the main rotary shaft, the four-jaw chuck, and the roller shaft head, and resets the synchronous height-adjustable multi-disc polishing assembly, the shaft end passive polishing assembly, and the shaft body polishing assembly. The roller shaft head is removed from the four-jaw chuck and a surface inspection is performed. S104: After polishing, the staff cleans and maintains the entire device to ensure that the device is in good working condition and is ready for the next operation.

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