Conveying device for bar materials for manufacturing joints

Abstract

The utility model relates to a conveying device for bar materials for manufacturing joints, which comprises a mandrel with a D-shaped section and a guide riding wheel, the mandrel is inserted into a D-shaped insertion hole of the guide riding wheel, and a cooling inlet hole and a cooling outlet hole are respectively formed in the middle of the left end face and the middle of the right end face of the mandrel. A transverse rectangular inserting groove penetrating through the two end faces of the guide riding wheel is formed in the planar bottom face of the D-shaped inserting hole, and longitudinal heat dissipation annular grooves communicating with the rectangular inserting groove are formed in the inner walls of the two sides of the D-shaped inserting hole correspondingly; cooling through holes communicated with the cooling inlet hole and the cooling outlet hole are formed in the parts, on the two sides of the guide riding wheel, of the mandrel respectively, and the two ends of the locking frame are inserted into the cooling through holes in the two sides of the guide riding wheel respectively. The conveying device is of a guide riding wheel structure, the guide riding wheel is positioned on the core shaft based on the locking frame, meanwhile, the cooling channel is arranged on the locking frame and can be connected with a cooling heat dissipation structure of the core shaft and the guide riding wheel, the structure is simple, and the cooling heat dissipation effect is good.

Description

Technical Field:

[0001] The utility model relates to the technical field of hot forging bar conveying mechanisms, and more specifically to a conveying device for bars used to make joints. Background Art:

[0002] At present, some pipe joints are made by cutting heated bars and then hot forging them into blank parts. During the hot forging process of pipe joints, it is necessary to support and guide the heated bars. The support and guidance are achieved by supporting with guide wheels and idler wheels. However, the heated bars will transfer heat to the guide wheels and idler wheels, and the heat will accumulate in the guide wheels and idler wheels. If heat dissipation is not carried out in time, it will cause the guide wheels and idler wheels to crack, which will seriously affect the service life of the guide wheels and idler wheels. However, the guide wheels and idler wheels cannot be directly impacted by cooling water, otherwise the cooling water will fall on the bars and affect the temperature of the bars. At present, some cooling structures are provided with spiral heat dissipation channels inside the guide wheels and idler wheels, and heat dissipation is carried out by passing cooling liquid through the heat dissipation channels. However, it is more troublesome to process spiral heat dissipation channels inside the guide wheels and idler wheels. Therefore, a heat dissipation guide wheel with a simpler and more convenient cooling structure is needed. Content of the Utility Model:

[0003] The purpose of the utility model is to provide a conveying device for bars used to make joints in view of the deficiencies of the prior art. The conveying device is a guide wheel and idler wheel. The guide wheel and idler wheel is positioned on the mandrel based on a locking frame. At the same time, the locking frame is provided with a cooling channel that can connect the cooling and heat dissipation structures of the mandrel and the guide wheel and idler wheel. The structure is simple and the cooling and heat dissipation effect is good.

[0004] A conveying device for bars used to make joints includes a mandrel with a D-shaped cross-section and a guide wheel and idler wheel. The outer wall on the upper side of the mandrel is a plane. A V-shaped annular groove is formed on the outer wall in the middle of the guide wheel and idler wheel. A transverse D-shaped jack is formed in the middle of the guide wheel and idler wheel. The mandrel is inserted into the D-shaped jack of the guide wheel and idler wheel. Cooling inlet holes and cooling outlet holes are respectively formed in the middle of the left and right end faces of the mandrel. A rectangular slot that is transverse and penetrates both end faces of the guide wheel and idler wheel is formed on the planar bottom surface of the D-shaped jack. Heat dissipation annular grooves that are respectively longitudinally connected to the rectangular slot are formed on the inner walls on both sides of the D-shaped jack. A "冂"-shaped locking frame is inserted into the rectangular slot of the guide wheel and idler wheel. Cooling through holes that are connected to the cooling inlet hole and the cooling outlet hole are respectively formed on the mandrel on both sides of the guide wheel and idler wheel. Both ends of the locking frame are respectively inserted into the cooling through holes on both sides of the guide wheel and idler wheel. Horizontal ear plates are respectively formed on the end faces on both sides of the left and right ends of the locking frame. Limit bolts are screwed on the ear plates, and the ends of the limit bolts are pressed against the mandrel.

[0005] The left and right sides of the locking frame are respectively formed with upwardly extending stoppers, which respectively abut against the end faces of the left and right sides of the guide roller; the upper part of the locking frame is respectively formed with a liquid inlet channel and a liquid outlet channel which are horizontally distributed frontally and rearwardly, a liquid inlet hole connecting the cooling inlet hole and the liquid inlet channel is formed on the left side of the locking frame, and a liquid outlet hole connecting the cooling outlet hole and the liquid outlet channel is formed on the right side, a plurality of input holes connecting the liquid inlet channel and the heat dissipation ring groove are formed on the front end face of the upper part of the locking frame, and a plurality of output holes connecting the liquid inlet channel and the heat dissipation ring groove are formed on the rear end face.

[0006] Preferably, the width of the rectangular slot on the guide wheel is equal to the distance between the front and rear end surfaces of the locking frame, and the width of the rectangular slot is smaller than the width of the flat bottom surface in the D-shaped socket.

[0007] Preferably, the liquid inlet hole and the liquid outlet hole on the locking frame are both vertical and respectively penetrate the lower end surface of the locking frame, the liquid inlet channel and the liquid outlet channel are located on the upper side of the ear plate, the left end of the liquid inlet channel penetrates the left end surface of the locking frame, and the right end of the liquid outlet channel penetrates the right end surface of the locking frame, and the left end of the liquid inlet channel and the right end of the liquid outlet channel are respectively screwed with plugs.

[0008] Preferably, a vertical avoidance slot is formed on the core shaft on the inner side of the heat dissipation ring groove, a separator block is inserted in the avoidance slot, and the separator block is formed on the locking frame; the distance between the left and right end faces of the separator block is greater than the groove width of the heat dissipation ring groove.

[0009] Preferably, the spacing between the blocks on the locking frame is equal to the spacing between the left and right end faces of the guide wheel; the spacing between the front and rear end faces of the blocks is not greater than the spacing between the front and rear end faces of the locking frame.

[0010] Preferably, the distance from the bottom surface of the end of the locking frame to the bottom of the cooling through hole on the core shaft is greater than the distance from the upper end surface of the stopper to the upper end surface of the locking frame.

[0011] Preferably, the distance from the lower end surface of the ear plate to the core shaft is not less than the distance from the upper end surface of the stopper to the upper end surface of the locking frame.

[0012] The beneficial effects of the utility model are:

[0013] The conveying device is a guide roller structure, which is positioned on the core shaft based on a locking frame. At the same time, a cooling channel is provided on the locking frame to connect the core shaft and the guide roller. The cooling and heat dissipation structure has a simple structure and good cooling and heat dissipation effect. Description of the drawings:

[0014] Figure 1 It is a three-dimensional structural schematic diagram of the utility model;

[0015] Figure 2 It is a structural schematic diagram of the utility model from the right side;

[0016] Figure 3 is Figure 2 a schematic cross-sectional structure view at A-A in

[0017] Figure 4 is Figure 2 a schematic cross-sectional structure view at A-A in

[0018] Figure 5 is a schematic cross-sectional view of the right view of the present utility model.

[0019] In the figure: 1. mandrel; 11. cooling inlet hole; 12. cooling outlet hole; 13. cooling through hole; 14. avoidance slot; 2. guiding supporting wheel; 21. D-shaped jack; 22. heat dissipation ring groove; 3. locking frame; 31. stopper; 32. liquid inlet hole; 33. liquid inlet channel; 34. input hole; 35. liquid outlet hole; 36. liquid outlet channel; 37. output hole; 38. partition block; 39. ear plate; 4. limit bolt; 5. plug. Specific embodiments:

[0020] Example: As shown in Figures 1 to 5 a conveying device for a bar material for making a joint, including a mandrel 1 with a D-shaped cross-section and a guiding supporting wheel 2. The outer wall on the upper side of the mandrel 1 is a plane. A V-shaped ring groove is formed on the outer wall in the middle of the guiding supporting wheel 2. A horizontal D-shaped jack 21 is formed in the middle of the guiding supporting wheel 2. The mandrel 1 is inserted into the D-shaped jack 21 of the guiding supporting wheel 2. Cooling inlet holes 11 and cooling outlet holes 12 are respectively formed in the middle of the left and right end faces of the mandrel 1. A rectangular slot that is horizontal and penetrates through the two end faces of the guiding supporting wheel 2 is formed on the flat bottom surface of the D-shaped jack 21. Heat dissipation ring grooves 22 that are respectively longitudinally communicated with the rectangular slot are formed on the inner walls on both sides of the D-shaped jack 21. A "冂"-shaped locking frame 3 is inserted into the rectangular slot of the guiding supporting wheel 2. Cooling through holes 13 that are communicated with the cooling inlet holes 11 and the cooling outlet holes 12 are respectively formed on the mandrel 1 on both sides of the guiding supporting wheel 2. Both ends of the locking frame 3 are respectively inserted into the cooling through holes 13 on both sides of the guiding supporting wheel 2. The side walls at the ends of the locking frame 3 respectively abut against the side walls of the cooling through holes 13. Horizontal ear plates 39 are respectively formed on the end faces on both sides of the left and right ends of the locking frame 3. Limit bolts 4 are screwed on the ear plates 39. The ends of the limit bolts 4 press against the mandrel 1;

[0021] The left and right sides of the locking frame 3 are respectively formed with upwardly extending stoppers 31, and the stoppers 31 are respectively abutted against the end surfaces of the left and right sides of the guide roller 2; the upper part of the locking frame 3 is respectively formed with a liquid inlet channel 33 and a liquid outlet channel 36 which are horizontally distributed frontally and rearwardly, a liquid inlet hole 32 connecting the cooling inlet hole 11 and the liquid inlet channel 33 is formed on the left side of the locking frame 3, and a liquid outlet hole 35 connecting the cooling outlet hole 12 and the liquid outlet channel 36 is formed on the right side, a plurality of input holes 34 connecting the liquid inlet channel 33 and the heat dissipation ring groove 22 are formed on the front end surface of the upper part of the locking frame 3, and a plurality of output holes 37 connecting the liquid inlet channel 33 and the heat dissipation ring groove 22 are formed on the rear end surface.

[0022] The width of the rectangular slot on the guide wheel 2 is equal to the spacing between the front and rear end surfaces of the locking frame 3, and the width of the rectangular slot is smaller than the width of the planar bottom surface inside the D-shaped socket 21. The locking frame 3 can limit the axial displacement of the guide wheel 2 while also limiting the radial rotation of the guide wheel 2. However, the limitation of the radial rotation of the guide wheel 2 is also based on the planar outer wall on the core shaft 1.

[0023] The liquid inlet hole 32 and the liquid outlet hole 35 on the locking frame 3 are both vertical and penetrate the lower end surface of the locking frame 3 respectively. The liquid inlet channel 33 and the liquid outlet channel 36 are located on the upper side of the ear plate 39. The left end of the liquid inlet channel 33 penetrates the left end surface of the locking frame 3, and the right end of the liquid outlet channel 36 penetrates the right end surface of the locking frame 3. The left end of the liquid inlet channel 33 and the right end of the liquid outlet channel 36 are respectively screwed with plugs 5. The liquid inlet channel 33, the liquid outlet channel 36, the liquid inlet hole 32 and the liquid outlet hole 35 can all be processed by drilling, which is convenient to process.

[0024] A vertical avoidance slot 14 is formed on the core shaft 1 on the inner side of the heat dissipation ring groove 22, and a partition block 38 is inserted in the avoidance slot 14. The partition block 38 is formed on the locking frame 3; the distance between the left and right end faces of the partition block 38 is greater than the groove width of the heat dissipation ring groove 22. In order to prevent the coolant output from the input hole 34 from passing through the rectangular slot and then directly entering the output hole 37, a partition block 38 is added to prevent the coolant from passing through the rectangular slot.

[0025] The distance between the stoppers 31 on the locking frame 3 is equal to the distance between the left and right end surfaces of the guide roller 2; the distance between the front and rear end surfaces of the stoppers 31 is not greater than the distance between the front and rear end surfaces of the locking frame 3.

[0026] The distance from the bottom surface of the end of the locking frame 3 to the bottom of the cooling through hole 13 on the core shaft 1 is greater than the distance from the upper end surface of the stopper 31 to the upper end surface of the locking frame 3 .

[0027] The distance from the lower end surface of the ear plate 39 to the core shaft 1 is not less than the distance from the upper end surface of the stopper 31 to the upper end surface of the locking frame 3 .

[0028] Working principle: The utility model is a conveying device for making bar materials for joints, and the conveying device is a guide wheel 2. Two heat dissipation ring grooves 22 are conveniently processed in the guide wheel 2. By moving the locking frame 3 downward, the guide wheel 2 can be sleeved on the locking frame 3 and the core shaft 1, and then the limit bolt 4 is rotated to realize the upward movement of the locking frame 3 to position the guide wheel 2; at the same time, the slot structure on the locking frame 3 can participate in the cooling and heat dissipation of the guide wheel 2 while cooling the liquid, and the heat dissipation flow is as follows:

[0029] The coolant enters from the cooling inlet hole 11 of the core shaft 1, and then enters the heat dissipation ring groove 22 of the guide roller 2 through the liquid inlet hole 32, the liquid inlet channel 33 and the input hole 34. The coolant flows in a ring shape in the heat dissipation ring groove 22, and then is output into the liquid outlet channel 36 through the output hole 37, and then enters the cooling hole 11 of the core shaft 1 through the liquid outlet hole 35 and is output.

[0030] The embodiments are used to illustrate the present invention, but not to limit the present invention. Any person skilled in the art may modify the embodiments without violating the spirit and scope of the present invention, and therefore the scope of protection of the present invention shall be as set forth in the claims of the present invention.

Claims

1. A conveying device for making a bar material for a joint, comprising a mandrel (1) with a D-shaped cross section and a guide roller (2), wherein the outer wall on the upper side of the mandrel (1) is a plane, a V-shaped annular groove is formed on the outer wall of the middle part of the guide roller (2), a transverse D-shaped insertion hole (21) is formed in the middle part of the guide roller (2), the mandrel (1) is inserted into the D-shaped insertion hole (21) of the guide roller (2), and a cooling inlet hole (11) and a cooling outlet hole (12) are respectively formed in the middle of the left and right end faces of the mandrel (1); characterized in that: The flat bottom surface of the D-shaped socket (21) is formed with a rectangular slot that runs horizontally and penetrates through both end faces of the guiding supporting wheel (2). Cooling ring grooves (22) that are longitudinally connected to the rectangular slot are formed on the inner walls on both sides of the D-shaped socket (21). A "冂”-shaped locking frame (3) is inserted into the rectangular slot of the guiding supporting wheel (2). Cooling through holes (13) that are connected to the cooling inlet hole (11) and the cooling outlet hole (12) are respectively formed on the core shafts (1) on both sides of the guiding supporting wheel (2). Both ends of the locking frame (3) are respectively inserted into the cooling through holes (13) on both sides of the guiding supporting wheel (2); horizontal ear plates (39) are respectively formed on the end faces on both the left and right sides of the locking frame (3). A limiting bolt (4) is screwed onto the ear plate (39), and the end of the limiting bolt (4) presses against the core shaft (1). On both the left and right sides of the locking frame (3), upward-extending stoppers (31) are respectively formed, and the stoppers (31) respectively abut against the end faces on both the left and right sides of the guiding supporting wheel (2); on the upper part of the locking frame (3), a liquid inlet channel (33) and a liquid outlet channel (36) that run horizontally and are distributed front and back are respectively formed. A liquid inlet hole (32) that connects the cooling inlet hole (11) and the liquid inlet channel (33) is formed on the left side of the locking frame (3), and a liquid outlet hole (35) that connects the cooling outlet hole (12) and the liquid outlet channel (36) is formed on the right side. A number of input holes (34) that connect the liquid inlet channel (33) and the cooling ring groove (22) are formed on the front end face of the upper part of the locking frame (3), and a number of output holes (37) that connect the liquid inlet channel (33) and the cooling ring groove (22) are formed on the rear end face.

2. A conveying device for bar material for making joints according to claim 1, characterized in that: The width of the rectangular slot on the guiding supporting wheel (2) is equal to the distance between the front and rear end faces of the locking frame (3), and the width of the rectangular slot is less than the width of the flat bottom surface inside the D-shaped socket (21).

3. A conveying device for bar material for making joints according to claim 1, characterized in that: The liquid inlet hole (32) and the liquid outlet hole (35) on the locking frame (3) are both vertical and respectively penetrate through the lower end face of the locking frame (3). The liquid inlet channel (33) and the liquid outlet channel (36) are located above the ear plate (39). The left end of the liquid inlet channel (33) penetrates through the left end face of the locking frame (3), and the right end of the liquid outlet channel (36) penetrates through the right end face of the locking frame (3). Plug heads (5) are respectively screwed onto the left end of the liquid inlet channel (33) and the right end of the liquid outlet channel (36).

4. A conveying device for bar material for making joints according to claim 2, characterized in that: A vertical avoidance slot (14) is formed on the core shaft (1) inside the cooling ring groove (22). A partition block (38) is inserted into the avoidance slot (14), and the partition block (38) is formed on the locking frame (3); the distance between the left and right end faces of the partition block (38) is greater than the width of the cooling ring groove (22).

5. A conveying device for bar material for making joints according to claim 2, characterized in that: The distance between the stoppers (31) on the locking frame (3) is equal to the distance between the left and right end faces of the guiding supporting wheel (2); the distance between the front and rear end faces of the stoppers (31) is not greater than the distance between the front and rear end faces of the locking frame (3).

6. A conveying device for bar material for making joints according to claim 5, characterized in that: The distance from the bottom surface of the end of the locking frame (3) to the bottom of the cooling through hole (13) on the core shaft (1) is greater than the distance from the upper end face of the stopper (31) to the upper end face of the locking frame (3).

7. A conveying device for bar material for making joints according to claim 6, characterized in that: The distance between the lower end surface of the ear plate (39) and the core shaft (1) is not less than the distance between the upper end surface of the stopper (31) and the upper end surface of the locking frame (3).

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