Output gear carburizing equipment for wind power generation

Abstract

The invention relates to the technical field of carburizing equipment, and provides output gear carburizing equipment for wind power generation, which comprises a carburizing furnace and a gear rack, and is characterized in that the gear rack comprises a rack main body and grid meshes, the rack main body comprises a pair of rectangular frames and four upright posts, the grid meshes comprise an upper grid mesh and a lower grid mesh, and four corners of the upper grid mesh are fixedly connected with the upright posts; the four corners of the lower grid mesh are slidably connected with the stand columns, inner lifting shafts and springs used for pressing the inner lifting shafts downwards are arranged in the stand columns, and the inner lifting shafts can drive the lower grid mesh to ascend and descend synchronously. An outer lifting shaft is arranged in the carburizing furnace, and after the outer lifting shaft is inserted into the stand column, the inner lifting shaft is lifted up; the lower grid mesh is provided with a mandrel, the mandrel is provided with a supporting part extending outwards in the radial direction, and the upper grid mesh is provided with a first hole and a notch. The gear carburizing device overcomes the defects in the prior art, is reasonable in design and convenient to use, and solves the technical problem that the carburizing effect is affected due to the fact that teeth make contact with silk threads or ribs of a grid mesh during carburizing of an existing gear.

Description

Technical Field

[0001] This invention relates to the field of carburizing equipment technology, and specifically to a carburizing equipment for output gears used in wind power generation. Background Technology

[0002] In existing technology, gears are placed on a rack inside the carburizing furnace during carburizing. The rack has a grid distributed at intervals from top to bottom, and the uniformly distributed pore structure on the grid facilitates the flow of carburizing agent. The gear is placed flat on the grid as a whole, meaning that the teeth and end faces of the gear are supported by the grid. The wires or ribs of the grid will come into contact with the teeth, thus affecting the carburizing effect at the contact points.

[0003] Therefore, we propose a carburizing device for the output gear of wind power generation. Summary of the Invention

[0004] To address the shortcomings of existing technologies, this invention provides a carburizing device for output gears used in wind power generation. It overcomes the deficiencies of existing technologies, is reasonably designed, and is easy to use. It solves the technical problem that the carburizing effect is affected by the contact between the gear teeth and the wires or ribs of the grid during the existing gear carburizing process.

[0005] To achieve the above objectives, the present invention provides the following technical solution: A carburizing device for output gears used in wind power generation includes a carburizing furnace and a gear rack, characterized in that: the gear rack includes a rack body and a grid, the rack body includes a pair of vertically parallel and spaced rectangular frames, the four corners of the rectangular frames are connected by columns. The grid includes an upper grid and a lower grid. The four corners of the upper grid are fixedly connected to the columns, and the four corners of the lower grid are connected to guide sleeves. The guide sleeves are fitted onto the columns and threaded with limit bolts. The columns are provided with an inner lifting shaft and a spring (fourth spring) for pressing the inner lifting shaft down. The inner lifting shaft is provided with a support part corresponding to the limit bolt. The columns are provided with a first guide groove extending vertically corresponding to the limit bolt. The limit bolt passes through the first guide groove and is supported on the support part. The bottom wall of the carburizing furnace is equipped with an outer lifting shaft that corresponds to the column. When the outer lifting shaft is inserted into the column, the inner lifting shaft, the limiting bolt, and the lower grid are lifted. The lower grid is provided with a mandrel, and the mandrel is provided with a support portion extending radially outward. The upper grid is provided with a first opening through which the mandrel passes, and the edge of the first opening is provided with a notch (third notch) through which the support portion passes.

[0006] Furthermore, a set of grooves arranged in a ring around the mandrel are provided on the mandrel. Each groove is elastically connected to a slider by a spring. A drive sleeve and a first spring are fitted on the mandrel. The outer wall of the drive sleeve is flush with the outer wall of the mandrel, and its bottom is folded outward to form an outer flange. The upper and lower ends of the first spring abut against the outer flange of the drive sleeve and the stepped surface of the mandrel, respectively. A sleeve seat and a second spring are fitted on the outer side of the drive sleeve. The sleeve seat is fixed to the back of the upper grid plate. The bottom of the sleeve seat is folded inward to form an inner flange. The inner flange is located below the outer flange and is used to vertically limit the outer flange. The two ends of the second spring abut against the back of the upper grid and the outer flange of the drive sleeve, respectively. The outer end of the slider is engaged with the upper end of the drive sleeve by an inclined surface.

[0007] Furthermore, the slider is provided with a through hole running along its length, and the inner wall of the through hole protrudes inward to form an annular flange. The guide bolt passes through the through hole, the annular flange, and the third spring and is threadedly connected to the spindle. The two ends of the third spring abut against the bottom wall of the annular flange and the groove, respectively.

[0008] Furthermore, several limiting bolts are distributed in a ring-shaped interval around the guide sleeve.

[0009] Furthermore, the upper end of the column cavity is provided with a plug and a fourth spring from top to bottom, and the upper and lower sections of the fourth spring abut against the plug and the inner lifting shaft, respectively.

[0010] Furthermore, a pair of rectangular frames are connected to a vertically arranged guide rod on their outer periphery. The outer end face of the guide rod is provided with a second guide groove extending vertically. A guide block is installed on the inner wall of the carburizing furnace. The guide block extends into the second guide groove and cooperates with the second guide groove in a vertical guiding manner.

[0011] Furthermore, the rectangular frame can be replaced by a frame of other shapes.

[0012] Furthermore, the device is also equipped with a gear transfer box, which contains a partition for positioning gears. The side plates, bottom plate, and partitions of the gear transfer box are all perforated plates.

[0013] Furthermore, the material rack is provided with several guide rods on the front side of the gear transfer box insertion direction, and no guide rods are provided on the rear side. Adjacent guide rods are respectively formed with positioning stops that cooperate with the gear transfer box.

[0014] Furthermore, the bottom plate of the gear transfer box is provided with a second opening that corresponds one-to-one with the spindle, and the second opening allows the spindle and the support to pass through.

[0015] This invention provides a carburizing device for output gears used in wind power generation, which has the following advantages: After the gear rack is transferred to the carburizing furnace, the outer lifting shaft is inserted into the column, and then the inner lifting shaft, the limiting bolt, and the lower grid are raised. The mandrel passes through the first opening of the upper grid and is inserted into the inner hole of the gear. At the same time, the dimension from the mandrel axis to the edge of the support part is larger than the diameter of the inner hole of the gear. During the process of the mandrel being inserted into the inner hole of the gear, the support part will support the gear and drive the gear to be lifted, so that the gear is suspended and spaced apart from the upper grid, avoiding contact between the gear teeth and the wires or ribs of the upper grid, thus ensuring the carburizing effect. After carburizing is completed, the gear rack is removed from the carburizing furnace. That is, the outer lifting shaft is removed from the column, and the inner lifting shaft is reset downward under the action of the spring. The inner lifting shaft, the limit bolt and the lower grid are moved down, the spindle is removed from the inner hole of the gear, the support part is released from supporting the gear, and the gear falls back to the upper grid, which facilitates the gear to be quickly removed from the rack. During gear placement or material rack transfer, the gears may shift to some extent. Therefore, the mandrel size is designed to be smaller than the inner diameter of the gear to facilitate smooth insertion of the mandrel. At the same time, the drive sleeve stops due to the restriction of the upper grid, and the mandrel continues to rise. A set of sliders extends out of the mandrel and pushes it outward to straighten the gear, so that the preset interval is maintained between adjacent gears to ensure the flow effect of the carburizing agent. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of the present invention; Figure 2 This is a partially enlarged structural diagram of the upper and lower grids in this invention; Figure 3 This is a schematic diagram of the upper and lower grids of the present invention with the pore structure omitted; Figure 4 This is a cross-sectional view of the structure from a first perspective of the present invention; Figure 5 for Figure 4 A magnified structural diagram of point A in the middle; Figure 6 for Figure 5 A magnified structural diagram of section B in the middle; Figure 7 This is a cross-sectional view of the structure from a second perspective of the present invention; Figure 8 for Figure 7 A magnified structural diagram of section C in the middle; Figure 9 for Figure 7 A magnified structural diagram of section D in the middle; Figure 10 This is a schematic diagram of the structure of the present invention after the gear transfer box is added.

[0017] In the picture: 1. Rectangular frame; 2. Columns; 3. Install the fence; 3a. First opening; 3b. The third gap; 4. Lower fence; 5. Guide sleeve; 6. Limit bolts; 7. Guide rod; 8. Mandrel; 8a. Support section; 8b. Small path section; 8c, Slide; 9. Drive sleeve; 9a. The second gap; 10. Sleeve seat; 11. The first spring; 12. The second spring; 13. Slider; 13a. First inclined plane; 14. Guide bolts; 15. The third spring; 16. Plug; 17. The fourth spring; 18. Inner lifting shaft; 18a. Supporting part; 19. Gear transfer box; 19a. Second opening. Detailed Implementation

[0018] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0019] See attached document Figures 1-9 A carburizing device for output gears used in wind power generation includes a carburizing furnace and a gear rack. The gear rack includes a rack body and a grid. The rack body includes a pair of vertically parallel and spaced rectangular frames, with the four corners of the rectangular frames connected by columns. The grid includes an upper grid and a lower grid. The four corners of the upper grid are fixedly connected to the columns, and the four corners of the lower grid are slidably connected to the columns vertically. The four corners of the lower grid are connected to guide sleeves. The guide sleeves are fitted onto the columns and threaded with limit bolts. Several limit bolts are distributed in a ring around the guide sleeves at intervals. The columns are provided with an inner lifting shaft and a spring (i.e., the fourth spring; in this embodiment, the first, second, third, and fourth springs are all high-temperature resistant springs) for pressing down the inner lifting shaft. The inner lifting shaft is provided with a support portion corresponding to the limit bolts. The columns are provided with a first guide groove extending vertically corresponding to the limit bolts. The limit bolts pass through the first guide groove and are supported on the support portion. In this embodiment, the support portion is an annular flange extending radially outward along the inner lifting shaft. The bottom wall of the carburizing furnace is provided with an outer lifting shaft that corresponds to the column. When the outer lifting shaft is inserted into the column, the inner lifting shaft, the limiting bolt and the lower grid are lifted. The outer lifting shaft can be set on the base, and the base is supported on the bottom of the furnace cavity of the carburizing furnace. The lower grid is provided with a mandrel, which can be one or more and evenly distributed on the lower grid. The mandrel is provided with a support portion extending radially outward. Preferably, the diameter of the mandrel is 0.5-0.8 times the diameter of the gear inner hole, and the dimension from the mandrel axis to the edge of the support portion is 1.2-1.5 times the radius of the gear inner hole. The upper grid is provided with a first opening for the mandrel to pass through. The edge of the first opening is provided with a notch for the support portion to pass through (i.e., a third notch. The subsequent inner and outer flanges are respectively provided with a first notch and a second notch that correspond one-to-one with the third notch and are vertically aligned, all for the support portion to pass through).

[0020] In this embodiment, a set of grooves arranged in a ring around the mandrel are provided on the mandrel. Each groove is elastically connected to a slider by a spring. A drive sleeve and a first spring are fitted on the mandrel. The outer wall of the drive sleeve is flush with the outer wall of the mandrel, and its bottom is folded outward to form a ring-shaped outer flange. The upper and lower ends of the first spring abut against the outer flange of the drive sleeve and the stepped surface of the mandrel, respectively. A sleeve seat and a second spring are fitted on the outer side of the drive sleeve. The sleeve seat is fixed to the back of the upper grid plate. The bottom of the sleeve seat is folded inward to form a ring-shaped inner flange. The central opening of the inner flange allows the mandrel and the support to pass through. The inner flange is located below the outer flange and is used to vertically limit the outer flange. The two ends of the second spring abut against the back of the upper grid and the outer flange of the drive sleeve, respectively. The first inclined surface at the outer end of the slider slides in cooperation with the second inclined surface at the upper end of the drive sleeve.

[0021] The slider has a through hole running along its length. An annular flange protrudes inward from the inner wall of the through hole. A guide bolt passes through the through hole, the annular flange, and a third spring, and is threaded onto the mandrel. The two ends of the third spring abut against the bottom wall of the annular flange and the groove, respectively. Under the action of the third spring, multiple sliders extend out of the groove and form multiple points of elastic contact with the inner wall of the gear's bore, thus aligning the gear with the mandrel and making it substantially coaxial. The head of the guide bolt engages with the annular flange to limit the extension distance of the slider, ensuring that the first inclined surface of the slider remains in contact with the second inclined surface of the drive sleeve. When the mandrel retracts downwards, the slider can smoothly retract into the groove, ensuring the reliability of the device.

[0022] The mandrel is stepped, and the drive sleeve is fitted onto the small-diameter end of the upper part of the mandrel. A cap / cover plate is connected above the small-diameter end. The cap / cover plate can limit the vertical height of the drive sleeve, ensuring that the drive sleeve can block the slider and prevent the slider from moving out when the mandrel is not moving upward.

[0023] In this embodiment, a plug and a fourth spring are arranged from top to bottom at the upper end of the column's cavity. The upper and lower sections of the fourth spring abut against the plug and the inner lifting shaft, respectively. When the gear rack is removed from the carburizing furnace, the outer lifting shaft moves out of the column, and the inner lifting shaft resets downward under the action of the fourth spring. The inner lifting shaft, the limiting bolt, and the lower grid move downward, the spindle moves out of the gear's inner hole, the support part releases its support for the gear, and the gear falls back onto the upper grid, facilitating the synchronous and rapid removal of multiple gears from the upper grid.

[0024] In this embodiment, a pair of rectangular frames are connected to vertically arranged guide rods on their outer peripheries. The outer end face of the guide rods is provided with a second guide groove extending vertically. A guide block is installed on the inner wall of the carburizing furnace. The guide block extends into the second guide groove and cooperates with the second guide groove in a vertical guiding manner. During the process of placing the gear rack into the carburizing furnace, the guide rods and guide blocks are used for positioning to ensure that each column is aligned with the outer lifting shaft. This ensures that the inner lifting shaft, limit bolts, and lower grid can move upward smoothly. The support part of the mandrel can support the gear and drive the gear to lift, so that the gear is suspended in the air and spaced apart from the upper grid, avoiding contact between the gear teeth and the threads or ribs of the upper grid.

[0025] See attached document Figure 10The equipment is also equipped with a gear transfer box, which contains a partition for positioning gears. The side plates, bottom plate, and partitions of the gear transfer box are all perforated plates, which ensure the flow of carburizing agent. The bottom plate of the gear transfer box has a second opening corresponding to the mandrel, allowing the mandrel and support to pass through, thus facilitating the rapid transfer of gears without removing the gear transfer box. The material rack has several guide rods on the front side of the gear transfer box in the insertion direction, but no guide rods on the rear side. Adjacent guide rods form positioning stops that cooperate with the gear transfer box. The gear transfer box is supported on the upper grid and pushed forward until the front two sides of the gear transfer box abut against the positioning stops. The insert plate opens, and the gear falls onto the upper grid. The front-back and left-right positions of the gear transfer box are positioned by a pair of positioning stops. At the same time, the gear is limited by the left and right side walls and the front and rear partitions within the transfer box, ensuring the positional relationship between the gear and the mandrel after it falls onto the upper grid.

[0026] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0027] The above embodiments are only used to illustrate the technical solutions of the present invention, and are not intended to limit it. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A carburizing device for output gears used in wind power generation, comprising a carburizing furnace and a gear rack, characterized in that: The gear rack includes a rack body and a grid. The rack body includes a pair of vertically parallel and spaced rectangular frames, with the four corners of the rectangular frames connected by columns. The grid includes an upper grid and a lower grid. The four corners of the upper grid are fixedly connected to the columns, and the four corners of the lower grid are connected to guide sleeves. The guide sleeves are fitted onto the columns and threaded with limit bolts. The columns are provided with an inner lifting shaft and a spring for pressing the inner lifting shaft down. The inner lifting shaft is provided with a support part corresponding to the limit bolt. The columns are provided with a first guide groove extending vertically corresponding to the limit bolt. The limit bolt passes through the first guide groove and is supported on the support part. The bottom wall of the carburizing furnace is equipped with an outer lifting shaft that corresponds to the column. When the outer lifting shaft is inserted into the column, the inner lifting shaft, the limiting bolt, and the lower grid are lifted. The lower grid is provided with a mandrel, and the mandrel is provided with a support portion extending radially outward. The upper grid is provided with a first opening through which the mandrel passes, and the edge of the first opening is provided with a notch through which the support portion passes.

2. The carburizing equipment for output gears in wind power generation as described in claim 1, characterized in that: The mandrel has a set of grooves arranged in a ring around it. Each groove is elastically connected to a slider by a spring. A drive sleeve and a first spring are fitted on the mandrel. The outer wall of the drive sleeve is flush with the outer wall of the mandrel, and its bottom is folded outward to form an outer flange. The upper and lower ends of the first spring abut against the outer flange of the drive sleeve and the stepped surface of the mandrel, respectively. A sleeve seat and a second spring are fitted on the outer side of the drive sleeve. The sleeve seat is fixed to the back of the upper grid plate. The bottom of the sleeve seat is folded inward to form an inner flange. The inner flange is located below the outer flange and is used to vertically limit the outer flange. The two ends of the second spring abut against the back of the upper grid and the outer flange of the drive sleeve, respectively. The outer end of the slider is engaged with the upper end of the drive sleeve by a bevel.

3. The carburizing equipment for output gears in wind power generation as described in claim 2, characterized in that: The slider has a through hole running along its length. The inner wall of the through hole protrudes inward to form an annular flange. The guide bolt passes through the through hole, the annular flange, and the third spring and is threadedly connected to the spindle. The two ends of the third spring abut against the bottom wall of the annular flange and the groove, respectively.

4. The carburizing equipment for output gears in wind power generation as described in claim 1, characterized in that: Several limiting bolts are distributed in a ring-shaped interval around the guide sleeve.

5. The carburizing equipment for output gears in wind power generation as described in claim 1, characterized in that: The upper end of the column cavity is provided with a plug and a fourth spring from top to bottom, and the upper and lower sections of the fourth spring abut against the plug and the inner lifting shaft, respectively.

6. The carburizing equipment for output gears in wind power generation as described in claim 1, characterized in that: A pair of rectangular frames are connected to a vertically arranged guide rod on their outer periphery. The outer end face of the guide rod is provided with a second guide groove extending vertically. A guide block is installed on the inner wall of the carburizing furnace. The guide block extends into the second guide groove and cooperates with the second guide groove in a vertical guiding manner.

7. A carburizing device for output gears in wind power generation as described in any one of claims 1 to 6, characterized in that: The rectangular frame is replaced by a frame of other shapes.

8. The carburizing equipment for output gears in wind power generation as described in claim 6, characterized in that: The device is also equipped with a gear transfer box, which contains a partition for positioning gears. The side plates, bottom plate, and partitions of the gear transfer box are all perforated plates.

9. The carburizing equipment for output gears in wind power generation as described in claim 8, characterized in that: The material rack is provided with several guide rods on the front side of the gear transfer box insertion direction, and no guide rods are provided on the rear side. Adjacent guide rods respectively form positioning stops that cooperate with the gear transfer box.

10. The carburizing equipment for output gears in wind power generation as described in claim 9, characterized in that: The bottom plate of the gear transfer box is provided with a second opening that corresponds one-to-one with the spindle, and the second opening allows the spindle and the support to pass through.

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