A circular arc guide pair

Abstract

The present application relates to the field of guide rail pairs, in particular, an arc guide rail pair, comprising an arc guide rail and a slider assembly, the slider assembly comprising a base, at least two guide plates, at least two limit seats and a plurality of ball bearings, at least two rolling channels are spaced apart on the inner walls on both sides of the base, at least two guide plates are connected to the two ends of the base in a one-to-one correspondence, at least two guide arc grooves are spaced apart on the surface of the guide plates, the limit seats are connected to the guide plates in a one-to-one correspondence, an oil nozzle is connected to the plate surface of the limit seat, an oil inlet hole is provided on the plate surface of the guide plate, and a plurality of oil inlet channels are spaced apart on the surface of the guide plate. The arrangement of the oil nozzle, the oil inlet hole and the oil inlet channel in the present application allows the oil in the guide arc groove to fully contact the ball bearings and perform heat exchange, thereby cooling the ball bearings, and at the same time, the oil coats the ball bearing surface, thereby lubricating the ball bearing surface, further reducing the wear between the ball bearing surface and the working surface of the arc guide rail, thereby extending the service life of the arc guide rail pair.

Description

Technical Field

[0001] The present application relates to the field of guide rail pairs, and in particular to an arc guide rail pair. Background Art

[0002] A circular arc guide pair is a mechanical transmission device based on rolling contact, consisting of a circular arc guide and a guide slider. The guide slider usually contains rolling elements such as steel balls, which roll on the inner wall of the circular arc groove of the guide rail, thereby realizing the transition from sliding friction to rolling friction.

[0003] When the circular arc guide pair is in long-term motion, the outer surface of the steel ball rolls in contact with the working surface of the guide rail. The steel ball converts part of the mechanical energy into heat energy, which increases the temperature of the outer surface of the steel ball and intensifies the wear on the outer surface of the steel ball, thereby shortening the service life of the steel ball. Summary of the Invention

[0004] In order to improve the problem of wear on the outer peripheral surface of the steel ball, the present application provides an arc guide pair.

[0005] This application provides an arc guide pair, which adopts the following technical solution:

[0006] A circular arc guide pair, comprising an arc guide rail and a slider assembly, wherein the slider assembly comprises a base, at least two guide plates, at least two limit seats and a plurality of balls, at least two guide cavities for rolling balls are spaced apart on both sides of the base, the guide cavities penetrate the outer wall of the base, at least two rolling channels for rolling balls are spaced apart on both sides of the inner wall of the base facing the working surface of the arc guide rail, the rolling channels correspond to the guide cavities one-to-one, the length direction of the rolling channels and the length direction of the guide cavities are parallel to each other, at least two guide plates are connected to both ends of the base one-to-one, and the surfaces of the guide plates on both sides facing the base are spaced apart and provided with balls for rolling. At least two guide arc grooves, the guide arc grooves connecting the guide cavity and the rolling channel, the balls circulate and roll in the guide cavity, the guide arc grooves and the rolling channel, and the ball surface is in rolling contact with the working surface of the arc guide rail, the limit seat corresponds to and is connected to the guide plate one by one, the limit seat is connected to an oil nozzle on the plate surface away from the guide plate, the oil nozzle is connected to the oil inlet end of the oil pump through a pipeline, an oil inlet hole is provided on the plate surface of the guide plate facing the oil outlet end, the oil inlet hole passes through the plate surface of the guide plate, and a plurality of oil inlet channels are spaced apart on the surface of the guide plate facing the base, the plurality of oil inlet channels are all connected to the oil inlet hole, and the oil inlet channels correspond to and are connected to the guide arc grooves one by one.

[0007] By adopting the above technical solution, the base slides on the surface of the arc slide rail, driving the ball to circulate and roll in the guide cavity, guide arc groove and rolling channel, and the ball surface is in rolling contact with the working surface of the arc guide rail, and rolling friction replaces sliding friction, thereby reducing the wear between the ball and the arc guide rail; at the same time, the oil pump drives the oil through the pipeline to be injected into the oil inlet end of the oil nozzle, and the oil in the oil nozzle enters the oil inlet hole through the oil outlet end of the oil nozzle, and the oil inlet hole is connected to multiple oil inlet channels, which correspond to and are connected to the guide arc groove one by one. When the ball enters the guide arc groove, the oil in the guide arc groove fully contacts the ball and performs heat exchange, thereby achieving cooling of the ball. At the same time, the oil covers the ball surface to achieve lubrication of the ball surface, further reducing the wear between the ball surface and the working surface of the arc guide rail, thereby extending the service life of the circular arc guide pair.

[0008] Optionally, the inner wall of the oil inlet channel is rotatably connected to an impeller 1, and a portion of the impeller blades face the guide arc groove. When the oil in the oil inlet channel enters the guide arc groove, the impeller 1 blades are impacted by the oil and rotate.

[0009] By adopting the above technical solution, a part of the impeller blades are facing the guide arc groove, and the oil in the oil inlet channel enters the guide arc groove. The oil impacts the impeller blade and drives the impeller to rotate. The rotation of the impeller drives the oil in the oil inlet channel to rotate, thereby extending the flow time of the oil in the oil inlet channel. The oil is in full contact with the inner wall of the oil inlet channel and performs heat exchange, so that the guide plate is not easy to heat up during long-term operation, thereby ensuring the stability of the operation of the circular arc guide pair.

[0010] Optionally, a positioning block is connected to the surface of the limit seat facing the guide plate, and a positioning hole is opened on the surface of the guide plate for the positioning block to be embedded in. When the positioning block is embedded in the positioning hole, the oil inlet hole faces the oil outlet end of the oil nozzle.

[0011] By adopting the above technical solution, when the limit seat is pressed against the surface of the guide plate away from the base, the positioning block is embedded in the positioning hole, and the outer peripheral surface of the positioning block is pressed against the inner wall of the positioning hole to form a limit, and the oil inlet hole is facing the oil outlet end of the oil nozzle. There is no need for staff to repeatedly adjust the limit seat and the guide plate, thereby improving the rapid installation of the arc guide pair.

[0012] Optionally, a heat dissipation component is connected between the limit seat and the guide plate, and the heat dissipation component includes impeller 2 and an insert, and the impeller 2 is rotatably connected to the surface of the positioning block facing the guide plate, the impeller 2 axis coincides with the impeller 1 axis, the end of the impeller 1 rotating shaft passes through the guide plate surface and faces the impeller 2 rotating axis, the insert is connected to the end of the impeller 1 rotating shaft, the surface of the impeller 2 rotating shaft is provided with an embedding groove for the insert to be embedded, and the surface of the limit seat facing the arc guide rail is provided with an air inlet channel, the air inlet channel passes through the positioning block surface and faces the impeller 2 air inlet end, and the surface of the guide plate facing the arc guide rail is provided with an air outlet channel, and the air outlet channel is connected to the positioning hole and faces the impeller 2 air outlet end.

[0013] By adopting the above technical solution, the block is embedded in the embedding groove, and the outer peripheral surface of the block is pressed against the inner wall of the embedding groove to form a limit, thereby realizing the coaxial connection between impeller 1 and impeller 2. When impeller 1 is impacted by the oil and rotates, it drives impeller 2 to rotate in the positioning hole, and the air inlet flow channel is toward the air inlet end of impeller 2, and the air outlet flow channel is toward the air outlet end of impeller 2. The outside air enters the positioning hole through the air inlet flow channel, and is discharged from the air outlet flow channel to impact the working surface of the arc guide rail, thereby increasing the air flow between the arc guide rail and the base, so that the air and the arc guide rail are fully in contact and heat exchange is carried out, thereby realizing the cooling of the guide rail, further improving the cooling efficiency of the circular arc guide rail pair, and thus ensuring the stability of the operation of the circular arc guide rail pair.

[0014] Optionally, the embedding block includes an embedding portion and a thermal expansion and contraction portion, one end of the thermal expansion and contraction portion is connected to the end of a rotating shaft of the impeller, and the other end of the thermal expansion and contraction portion is connected to the end of the embedding portion. When the thermal expansion and contraction portion heats up and expands, the embedding portion is driven to embed into the embedding groove.

[0015] By adopting the above technical solution, one end of the thermal expansion and contraction part is connected to the end of the impeller rotating shaft, and the other end of the thermal expansion and contraction part is connected to the end of the embedded part. When the thermal expansion and contraction part heats up and expands, the embedded part is driven to embed into the embedded groove, and the outer peripheral surface of the embedded part presses against the inner wall of the embedded groove to form a limit, thereby realizing the directional coaxial connection of impeller one and impeller two.

[0016] Optionally, an exhaust channel is opened on the bottom wall of the oil inlet channel, the exhaust channel is connected to the outlet channel, the inner wall of the exhaust channel is connected to an oil-isolating breathable membrane, and the air in the outlet channel impacts the oil in the oil inlet channel through the exhaust channel.

[0017] By adopting the above technical solution, the exhaust flow channel is connected to the air outlet flow channel and the oil inlet flow channel, and the oil-isolating breathable membrane is connected to the inner wall of the exhaust flow channel, so that the oil in the oil inlet flow channel is not easy to enter the air outlet flow channel through the exhaust flow channel, thereby ensuring the stability of the oil flow in the oil inlet flow channel; at the same time, the air in the air outlet flow channel impacts the oil in the oil inlet flow channel through the exhaust flow channel, promoting the flow of oil in the oil inlet flow channel, so that the oil is fully in contact with the inner wall of the oil inlet flow channel and performs heat exchange, thereby achieving cooling of the guide plate.

[0018] Optionally, the guide plate is connected to an adjustment component, which includes an adjustment block. A sliding cavity is provided on the inner wall of the air inlet duct for the adjustment block to slide, and the sliding cavity is connected to the exhaust duct. An air inlet hole is provided on the surface of the adjustment block facing the positioning hole, and an air outlet hole is provided on the surface of the adjustment block facing the air outlet duct. The air inlet hole is connected to the air outlet hole. When the adjustment block slides toward the direction close to the exhaust duct, the air outlet hole is connected to the exhaust duct.

[0019] By adopting the above technical solution, the air in the positioning hole passes through the air inlet and outlet holes in turn and impacts the surface of the arc slide rail from the air outlet channel, thereby achieving cooling of the arc slide rail. When ventilation to the exhaust channel is required, the adjustment block is driven to slide in the direction close to the exhaust channel, and the air outlet holes are connected to the exhaust channel. The air in the positioning hole passes through the air inlet and outlet holes in turn and impacts the oil in the oil inlet channel from the exhaust channel, thereby achieving directional flow of air in the exhaust channel and the outlet channel, and precise cooling.

[0020] Optionally, the adjustment component also includes a thermal expansion and contraction block, one end of which is connected to the inner wall of the sliding cavity, and the other end of which is connected to the surface of the adjustment block. When the thermal expansion and contraction block heats up and expands, the adjustment block is driven to slide toward the direction close to the exhaust duct, and the air outlet is connected to the exhaust duct.

[0021] By adopting the above technical solution, when the guide plate converts part of the mechanical energy into thermal energy, the guide plate transfers part of the thermal energy to the thermal expansion and contraction block, the thermal expansion and contraction block heats up and expands, and the thermal expansion and contraction block drives the adjustment block to slide toward the direction close to the exhaust duct. The air outlet is connected to the exhaust duct, realizing the directional sliding of the adjustment block. No external power device is required to drive it, which reduces energy loss and thus embodies the concept of energy saving.

[0022] Optionally, the limit seat is connected to a sealing assembly, which includes a sealing ring capsule. A sealing hole for the sealing ring capsule to be embedded is coaxially opened on the surface of the limit seat facing the oil inlet hole. One side of the sealing ring capsule presses against the inner wall of the sealing hole to form a seal, and the other side of the sealing ring capsule presses against the guide plate surface to form a seal.

[0023] By adopting the above technical solution, the axis of the sealing hole and the axis of the oil inlet hole coincide with each other, one side of the sealing ring bag is pressed against the inner wall of the sealing hole to form a seal, and the other side of the sealing ring bag is pressed against the guide plate surface to form a seal. The oil discharged from the oil outlet end of the oil nozzle is not easy to overflow from the pressing point between the guide plate surface and the limit seat surface, so that the oil discharged from the oil outlet end of the oil nozzle is stably injected into the oil inlet hole, thereby improving the stability of oil filling into the oil inlet hole.

[0024] Optionally, the sealing assembly also includes a piston and an elastic member, the surface of the limit seat is provided with a limit cavity for the guide plate to be embedded, the inner wall of the limit cavity is provided with an inflation flow channel for the piston to slide, one end of the elastic member in the elastic direction is connected to the inner wall of the inflation flow channel, and the other end of the elastic member in the elastic direction is connected to the piston surface, the elastic member has the elastic force to drive the piston to slide in the direction away from the inflation flow channel, and the end of the piston has a tendency to protrude from the inner wall of the limit cavity, and the inflation flow channel is connected to the inner cavity of the sealing ring bag.

[0025] By adopting the above technical solution, the elastic force of the elastic member drives the piston to slide in the direction away from the inflation flow channel, and the end of the piston tends to protrude from the inner wall of the limiting cavity. When the guide plate is embedded in the limiting cavity, the guide plate surface abuts the end of the piston and drives the piston to slide in the direction close to the inflation flow channel. The end of the piston is flush with the inner wall of the limiting cavity, the air pressure in the inflation flow channel increases, the inflation flow channel is connected to the inner cavity of the sealing ring bag, the air in the inflation flow channel enters the inner cavity of the sealing ring bag, the sealing ring bag is pressurized and expanded and presses against the surface of the guide plate to form a seal, thereby further increasing the pressing force between the surface of the sealing ring bag and the surface of the guide plate.

[0026] In summary, this application includes at least one of the following beneficial technical effects:

[0027] 1. The arrangement of the oil nozzle, oil inlet hole and oil inlet flow channel ensures that the oil in the guide arc groove is in full contact with the ball and performs heat exchange, thereby cooling the ball. At the same time, the oil coats the ball surface, lubricating the ball surface and further reducing the wear between the ball surface and the working surface of the arc guide rail, thereby extending the service life of the arc guide rail pair.

[0028] 2. The setting of impeller 1 prolongs the flow time of oil in the oil inlet channel. The oil fully contacts the inner wall of the oil inlet channel and performs heat exchange, so that the guide plate is not easy to heat up during long-term operation, thereby ensuring the stability of the operation of the arc guide pair;

[0029] 3. The setting of the positioning block and positioning hole eliminates the need for staff to repeatedly adjust the limit seat and guide plate, thereby improving the rapid installation of the arc guide pair. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Figure 1 It is a schematic diagram of the overall structure in the embodiment of the present application.

[0031] Figure 2 1 is an exploded view of a slider assembly in an embodiment of the present application.

[0032] Figure 3 It is a schematic diagram of the overall structure of the limit seat in the embodiment of the present application.

[0033] Figure 4 It is a partial cross-sectional view of the limit seat in the embodiment of the present application, mainly showing the sealing component.

[0034] Figure 5 It is a partial cross-sectional view of the guide plate in the embodiment of the present application, mainly showing the adjustment component.

[0035] Figure 6 It is a partial cross-sectional view of the limit seat in the embodiment of the present application, mainly showing the air inlet flow channel.

[0036] Explanation of reference numerals: 1. arc guide rail; 2. slider assembly; 21. base; 211. guide cavity; 212. rolling channel; 22. guide plate; 221. guide arc groove; 222. oil inlet hole; 223. oil inlet channel; 224. positioning hole; 225. exhaust channel; 226. air outlet channel; 23. limit seat; 231. limit cavity; 232. sealing hole; 233. inflation channel; 234. air inlet channel; 235. sliding cavity ; 24. Ball bearing; 3. Oil nozzle; 4. Sealing assembly; 41. Sealing ring bag; 42. Piston; 421. Guide surface; 43. Elastic member; 5. Positioning block; 6. Impeller 1; 7. Heat dissipation assembly; 71. Impeller 2; 711. Embedded groove; 72. Embedded block; 721. Embedded part; 722. Thermal expansion and contraction part; 8. Oil-isolating breathable membrane; 9. Adjustment assembly; 91. Adjustment block; 911. Air inlet; 912. Air outlet; 92. Thermal expansion and contraction block. DETAILED DESCRIPTION

[0037] The following is combined with Figure 1-6 This application is described in further detail.

[0038] The embodiment of the present application discloses an arc guide rail pair. Figure 1 and Figure 2, an arc guide pair includes an arc guide rail 1 and a slider assembly 2, the slider assembly 2 includes a base 21, at least two guide plates 22, at least two limit seats 23 and a plurality of balls 24, in the embodiment of the present application, the number of the guide plates 22 and the limit seats 23 are both two, the base 21 is slidably connected to the working surface of the arc guide rail, and at least two guide cavities 211 for rolling of the balls 24 are spaced apart on both sides in the width direction of the base 21. In the embodiment of the present application, the number of the guide cavities 211 is two, the arrangement direction of the guide cavities 211 is parallel to the height direction of the base 21, the depth direction of the guide cavities 211 is parallel to the length direction of the base 21, the guide cavities 211 pass through the outer wall of the base 21 along its own depth direction, and at least two rolling channels 212 for rolling of the balls 24 are spaced apart on the inner walls on both sides of the width direction of the base 21 facing the working surface of the arc guide rail 1. In the embodiment of the present application, the number of the rolling channels 212 is two, and the rolling channels 212 and the guide cavities The guide plates 22 are connected to the two ends of the base 21 in a one-to-one manner in the length direction. At least two guide arc grooves 221 for the balls 24 to roll are provided on both sides of the surface of the guide plate 22 facing the base 21. In the embodiment of the present application, there are two guide arc grooves 221, and the arrangement direction of the guide arc grooves 221 is parallel to the height direction of the guide plate 22. The guide arc grooves 221 connect the guide cavity 211 and the rolling channel 212. The balls 24 are divided into multiple groups, and each group of balls 24 corresponds to the guide cavity 211 one-to-one. The balls 24 circulate and roll in the guide cavity 211, the guide arc grooves 221 and the rolling channel 212, and the spherical surface of the balls 24 located in the rolling channel 212 is in rolling contact with the working surface of the arc guide rail 1. Rolling friction replaces sliding friction, thereby reducing the wear on the circular arc guide pair and extending the service life of the circular arc guide pair.

[0039] Reference Figure 1 and Figure 2 The limit seat 23 corresponds to the guide plate 22 one by one, and the limit seat 23 is connected to the surface of the guide plate 22 away from the base 21. The ends of the bolts are sequentially penetrated by the limit seat 23 and the guide plate 22 and are threadedly fixed to the surface of the base 21. The surface of the limit seat 23 and the surface of the base 21 clamp the two sides of the guide plate 22 to form a seal; the plate surface of the limit seat 23 away from the guide plate 22 is threadedly connected with an oil nozzle 3, and the oil nozzle 3 oil inlet end protruding from the limit seat 23 can be connected to the oil inlet end of the oil pump through a pipeline. The plate surface of the guide plate 22 facing the oil outlet end of the oil nozzle 3 is provided with an oil inlet hole 222, the axis of the oil inlet hole 222 and the length direction of the base 21 are parallel to each other, and the oil inlet hole 222 passes through the plate surface of the guide plate 22 along its own axis. A plurality of oil inlet channels 223 are spaced apart on the surface of the guide plate 22 facing the base 21. The oil inlet channels 223 correspond to and are connected with the guide arc grooves 221 one by one, and the plurality of oil inlet channels 223 are all connected to the oil inlet hole 222.

[0040] Reference Figure 1 and Figure 2 The oil pump drives the oil to be injected into the oil inlet end of the oil nozzle 3 through the pipeline. The oil in the oil inlet end of the oil nozzle 3 passes through the oil inlet hole 222 and the oil inlet channel 223 from the oil outlet end and enters the guide arc groove 221. The oil in the guide arc groove 221 is in full contact with the ball 24 and performs heat exchange, thereby cooling the ball 24. At the same time, the oil covers the spherical surface of the ball 24 to achieve lubrication of the spherical surface of the ball 24, further reducing the wear between the spherical surface of the ball 24 and the working surface of the arc guide rail 1, thereby extending the service life of the circular arc guide rail pair.

[0041] Reference Figure 2 and Figure 3 The surface of the limit seat 23 is provided with a limit cavity 231 for the guide plate 22 to be embedded. The outer peripheral surface of the guide plate 22 abuts the inner wall of the limit cavity 231 to form a limit, and the oil inlet hole 222 is facing the oil outlet end of the oil nozzle 3, so as to realize the precise installation of the guide plate 22 and the limit seat 23; the limit seat 23 is installed with a sealing assembly 4, which includes a sealing ring capsule 41, a piston 42 and an elastic member 43. The material of the sealing ring capsule 41 can be rubber or silicone. In the embodiment of the present application, the material of the sealing ring capsule 41 is rubber, which has a certain deformation ability. The surface of the limit seat 23 facing the oil inlet hole 222 is coaxially provided with a sealing hole 232 for the sealing ring capsule 41 to be embedded. One side of the sealing ring capsule 41 abuts against the inner wall of the sealing hole 232 to form a seal, and the other end of the sealing ring capsule 41 abuts against the plate surface of the guide plate 22 to form a seal.

[0042] Reference Figure 2 and Figure 4 The material of the piston 42 can be rubber or silicone. In the embodiment of the present application, the material of the piston 42 is rubber, which has a certain deformation ability. The inner wall of the limiting cavity 231 toward the guide plate 22 is provided with an inflation flow channel 233 for the sliding of the piston 42. The sliding direction of the piston 42 and the height direction of the limiting seat 23 are parallel to each other. The elastic member 43 can be a compression spring or a tension spring. In the embodiment of the present application, the elastic member 43 is a compression spring with a certain deformation ability. One end of the elastic member 43 in the elastic direction is connected to the inner wall of the inflation flow channel 233, and the other end of the elastic member 43 in the elastic direction is connected to the end of the piston 42. The elastic member 43 has the elastic force to drive the piston 42 to slide in the direction away from the inflation flow channel 233, and the end of the piston 42 tends to protrude from the inner wall of the limiting cavity 231.

[0043] Reference Figure 2 and Figure 4The inflation flow channel 233 is connected to the inner cavity of the sealing ring bag 41, and the end of the piston 42 protruding from the inner wall of the limiting cavity 231 is provided with a guide surface 421, and the guide surface 421 is in the shape of a circular arc convex. When the guide plate 22 is embedded in the limiting cavity 231, the guide surface 421 abuts against the surface of the guide plate 22 and guides the piston 42 to slide toward the inflation flow channel 233. The air pressure in the inflation flow channel 233 increases, and the air in the inflation flow channel 233 enters the inner cavity of the sealing ring bag 41. The surface of the sealing ring bag 41 is pressurized and expanded and presses against the surface of the guide plate 22 to form a seal, so that the oil discharged from the oil outlet end of the oil nozzle 3 is not easy to overflow from the contact between the surface of the guide plate 22 and the inner wall of the limiting cavity 231, thereby ensuring the stable oil supply of the oil nozzle 3 to the oil inlet hole 222.

[0044] Reference Figure 5 and Figure 6 The inner wall of the limiting cavity 231 is integrally formed with a positioning block 5, and the surface of the guide plate 22 is provided with a positioning hole 224 for the positioning block 5 to be embedded in. When the guide plate 22 is embedded in the limiting cavity 231 and the positioning block 5 is embedded in the positioning hole 224, the outer peripheral surface of the guide plate 22 is pressed against the inner wall of the limiting cavity 231, thereby realizing the initial limiting of the guide plate 22 on the limiting seat 23. At the same time, the outer peripheral surface of the positioning block 5 is pressed against the inner wall of the positioning hole 224 to form a limit, so that the guide plate 22 is not easy to separate from the limiting cavity 231, and the oil outlet end of the oil nozzle 3 faces the oil inlet hole 222, thereby realizing the precise assembly of the guide plate 22 and the limiting seat 23.

[0045] Reference Figure 5 and Figure 6 The bottom wall of the oil inlet channel 223 is rotatably connected to the impeller 6, the axis of the impeller 6 and the length direction of the base 21 are parallel to each other, and some blades of the impeller 6 are facing the guide arc groove 221. When the oil in the oil inlet channel 223 enters the guide arc groove 221 and impacts the impeller 6 blades, the impeller 6 blades are impacted by the oil and rotate, driving the oil in the oil inlet channel 223 to rotate, increasing the flow time of the oil in the oil inlet channel 223. The oil is in full contact with the inner wall of the oil inlet channel 223 and performs heat exchange, so that the guide plate 22 is not easy to heat up during long-term operation, thereby ensuring the stability of the operation of the circular arc guide pair.

[0046] Reference Figure 3 and Figure 5A heat dissipation component 7 is installed between the limit seat 23 and the guide plate 22. The heat dissipation component 7 can increase the heat dissipation efficiency of the guide plate 22. The heat dissipation component 7 includes an impeller 2 71 and an insert 72. The impeller 2 71 is rotatably connected to the surface of the positioning block 5 facing the guide plate 22. The axis of the impeller 2 71 coincides with the axis of the impeller 1 6. The end of the impeller 1 6 rotating shaft passes through the inner wall of the oil inlet channel 223 and is located in the positioning hole 224. The insert 72 includes an embedding portion 721 and a thermal expansion and contraction portion 722. The material of the thermal expansion and contraction portion 722 can be rubber or nylon. In the embodiment of the present application, the material of the thermal expansion and contraction portion 722 is nylon, which has a certain thermal expansion coefficient. One end of the thermal expansion and contraction portion 722 is fixed to the end of the impeller 1 6 rotating shaft, and the other end of the thermal expansion and contraction portion 722 is fixed to the embedding portion 721. The surface of the rotating shaft of the impeller 2 71 is provided with an embedding groove 711 for the embedding portion 721 to be embedded.

[0047] Reference Figure 3 and Figure 5 When the thermal expansion and contraction portion 722 heats up and expands, the thermal expansion and contraction portion 722 drives the embedded portion 721 to embed into the embedded groove 711, and the circumferential outer wall of the embedded portion 721 presses against the inner wall of the embedded groove 711 to form a limit, thereby realizing the coaxial connection between impeller 1 6 and impeller 2 71.

[0048] Reference Figure 5 and Figure 6 The surface of the limit seat 23 facing the arc guide rail 1 is provided with an air inlet channel 234, the air inlet channel 234 passes through the surface of the positioning block 5 and faces the air inlet end of the impeller 2 71, and the surface of the guide plate 22 facing the arc guide rail 1 is provided with an air outlet channel 226, the air outlet channel 226 is connected to the positioning hole 224 and faces the air outlet end of the impeller 2 71.

[0049] Reference Figure 5 and Figure 6 When the impeller 1 6 is impacted by the oil in the oil inlet channel 223 and rotates, the outer peripheral surface of the embedded portion 721 presses against the inner wall of the embedded groove 711, driving the impeller 2 71 to rotate on the surface of the positioning block 5, driving the outside air into the positioning hole 224 through the air inlet channel 234, and the air outlet end of the impeller 2 71 drives the air in the positioning hole 224 to be discharged from the air outlet channel 226, promoting the air flow between the base 21 and the arc-shaped slide rail. The air fully contacts the arc-shaped slide rail and performs heat exchange, thereby achieving cooling of the arc guide rail pair.

[0050] Reference Figure 5 and Figure 6An exhaust channel 225 is provided on the inner wall of the oil inlet channel 223, and the exhaust channel 225 is connected to the outlet channel 226. The exhaust channel 225 is connected to an oil-isolating breathable membrane 8 near the inner wall of the oil inlet channel 223. In the embodiment of the present application, the material of the oil-isolating breathable membrane 8 is polypropylene. The air in the outlet channel 226 can impact the oil in the oil inlet channel 223 through the exhaust channel 225, thereby promoting the flow of oil in the oil inlet channel 223, so that the oil in the oil inlet channel 223 is fully in contact with the inner wall of the oil inlet channel 223 and heat exchange is carried out, thereby further improving the cooling efficiency of the arc guide rail pair.

[0051] Reference Figure 5 and Figure 6 The guide plate 22 is equipped with an adjustment component 9, which can control the directional opening and closing of the exhaust flow channel 225 and the outlet flow channel 226. The adjustment component 9 includes an adjustment block 91 and a thermal expansion and contraction block 92. The air inlet flow channel 234 is provided with a sliding cavity 235 for sliding the adjustment block 91 on the inner wall facing the positioning hole 224. The sliding direction of the adjustment block 91 is parallel to the height direction of the guide plate 22. The sliding cavity 235 is connected to the exhaust flow channel 225. The adjustment block 91 is facing the surface of the positioning hole 224. An air inlet hole 911 is provided on the surface, the axis of the air inlet hole 911 and the sliding direction of the adjustment block 91 are parallel to each other, an air outlet hole 912 is provided on the surface of the adjustment block 91 facing the air outlet channel 226, the axis of the air outlet hole 912 and the axis of the air inlet hole 911 are perpendicular to each other, the air outlet hole 912 is connected to the air inlet hole 911, and the air in the positioning hole 224 passes through the air inlet hole 911, the air outlet hole 912 and the air outlet channel 226 in turn and impacts the surface of the arc guide rail 1, thereby realizing the directional opening of the air outlet channel 226.

[0052] Reference Figure 5 and Figure 6 The material of the thermal expansion and contraction block 92 can be rubber or nylon. In the embodiment of the present application, the material of the thermal expansion and contraction block 92 is nylon, which has a certain thermal expansion coefficient. One end of the thermal expansion and contraction block 92 is fixed to the inner wall of the sliding cavity 235 near the positioning hole 224, and the other end of the thermal expansion and contraction block 92 is fixed to the surface of the adjustment block 91. When the thermal expansion and contraction block 92 heats up and expands, the thermal expansion and contraction block 92 drives the adjustment block 91 to slide toward the direction close to the exhaust flow channel 225, and the air outlet 912 is connected to the exhaust flow channel 225. The air in the positioning hole 224 passes through the air inlet hole 911, the air outlet hole 912 and the exhaust flow channel 225 in turn and impacts the oil in the oil inlet flow channel 223, thereby realizing the directional opening of the exhaust flow channel 225.

[0053] The implementation principle of an arc guide pair in an embodiment of the present application is as follows: an oil pump drives the oil to be injected into the oil inlet end of the oil nozzle 3 through a pipeline, and the oil in the oil inlet end of the oil nozzle 3 passes through the oil inlet hole 222 and the oil inlet channel 223 in sequence from the oil outlet end and enters the guide arc groove 221. The oil in the guide arc groove 221 is in full contact with the ball 24 and performs heat exchange, thereby achieving cooling of the ball 24. At the same time, the oil covers the spherical surface of the ball 24, thereby achieving lubrication of the spherical surface of the ball 24, further reducing the wear between the spherical surface of the ball 24 and the working surface of the arc guide rail 1, thereby extending the service life of the arc guide pair.

[0054] The above are all preferred embodiments of the present application, and are not intended to limit the scope of protection of the present application. Therefore, any equivalent changes made based on the structure, shape, and principle of the present application should be included in the scope of protection of the present application.

Claims

1. A circular arc guide rail pair, characterized in that: The invention relates to a sliding block comprising a curved guide rail and a slider assembly, wherein the slider assembly comprises a base, at least two guide plates, at least two limit seats and a plurality of balls, at least two guide cavities for rolling balls are spaced apart on both sides of the base, the guide cavity passes through the outer wall of the base, and at least two rolling channels for rolling balls are spaced apart on the inner walls on both sides of the base facing the working surface of the curved guide rail, the rolling channels correspond to the guide cavities one-to-one, the length direction of the rolling channels and the length direction of the guide cavities are parallel to each other, at least two guide plates are connected to both ends of the base one-to-one, and at least two surfaces of the guide plates facing the base are spaced apart on both sides thereof for rolling balls. The guide arc groove is connected to the guide cavity and the rolling channel, the ball rolls in a circular motion in the guide cavity, the guide arc groove and the rolling channel, and the spherical surface of the ball rolls in contact with the working surface of the arc guide rail, the limit seat corresponds to and is connected to the guide plate one by one, the limit seat is connected to an oil nozzle on the plate surface away from the guide plate, the oil nozzle is connected to the oil inlet end of the oil pump through a pipeline, the plate surface of the guide plate facing the oil outlet end of the oil nozzle is provided with an oil inlet hole, the oil inlet hole penetrates the plate surface of the guide plate, and the surface of the guide plate facing the base is provided with a plurality of oil inlet channels at intervals, the plurality of oil inlet channels are all connected to the oil inlet hole, and the oil inlet channels correspond to and are connected to the guide arc groove one by one. The oil pump of described oil pumping machine is as follows: The oil pump of described oil pumping machine is as follows: The oil pump of described oil pumping machine is as follows: The oil pump of described oil pumping machine is as follows: The heat dissipation component includes impeller 2 and an insert, and the impeller 2 is rotatably connected to the surface of the positioning block facing the guide plate, the axis of impeller 2 coincides with the axis of impeller 1, the end of the impeller 1 rotating shaft passes through the guide plate surface and faces the impeller 2 rotating axis, the insert is connected to the end of the impeller 1 rotating shaft, the surface of the impeller 2 rotating shaft is provided with an embedding groove for the insert to be embedded, the surface of the limit seat facing the arc guide rail is provided with an air inlet flow channel, the air inlet flow channel passes through the surface of the positioning block and faces the air inlet end of impeller 2, the surface of the guide plate facing the arc guide rail is provided with an air outlet flow channel, the air outlet flow channel is connected to the positioning hole and faces the air outlet end of impeller 2.

2. The circular arc guide rail pair according to claim 1, characterized in that: The insert (72) includes an embedding portion (721) and a thermal expansion and contraction portion (722). One end of the thermal expansion and contraction portion (722) is connected to the end of the rotating shaft of the impeller (6), and the other end of the thermal expansion and contraction portion (722) is connected to the end of the embedding portion (721). When the thermal expansion and contraction portion (722) heats up and expands, the embedding portion (721) is driven to embed into the embedding groove (711).

3. The circular arc guide rail pair according to claim 1, characterized in that: An exhaust channel (225) is provided on the bottom wall of the oil inlet channel (223), the exhaust channel (225) is connected to the outlet channel (226), the inner wall of the exhaust channel (225) is connected to an oil-isolating breathable membrane (8), and the air in the outlet channel (226) impacts the oil in the oil inlet channel (223) through the exhaust channel (225).

4. The circular arc guide rail pair according to claim 3, characterized in that: The guide plate (22) is connected to an adjustment component (9), and the adjustment component (9) includes an adjustment block (91). The inner wall of the air inlet channel (234) is provided with a sliding cavity (235) for the adjustment block (91) to slide, and the sliding cavity (235) is connected to the exhaust channel (225). The surface of the adjustment block (91) facing the positioning hole (224) is provided with an air inlet hole (911), and the surface of the adjustment block (91) facing the air outlet channel (226) is provided with an air outlet hole (912). The air inlet hole (911) is connected to the air outlet hole (912). When the adjustment block (91) slides in a direction close to the exhaust channel (225), the air outlet hole (912) is connected to the exhaust channel (225).

5. The arc guide rail pair according to claim 4, characterized in that: The regulating assembly (9) further comprises a thermal expansion and contraction block (92), one end of which is connected to the inner wall of the sliding cavity (235), and the other end of which is connected to the surface of the regulating block (91). When the thermal expansion and contraction block (92) heats up and expands, it drives the regulating block (91) to slide in a direction close to the exhaust duct (225), and the air outlet (912) is connected to the exhaust duct (225).

6. The circular arc guide rail pair according to claim 1, characterized in that: The limiting seat (23) is connected to a sealing assembly (4), and the sealing assembly (4) includes a sealing ring capsule (41). A sealing hole (232) for embedding the sealing ring capsule (41) is coaxially opened on the surface of the limiting seat (23) facing the oil inlet hole (222). One side of the sealing ring capsule (41) presses against the inner wall of the sealing hole (232) to form a seal, and the other side of the sealing ring capsule (41) presses against the plate surface of the guide plate (22) to form a seal.

7. The circular arc guide rail pair according to claim 6, characterized in that: The sealing assembly (4) further comprises a piston (42) and an elastic member (43); an inner wall of the limiting cavity (231) is provided with an inflation channel (233) for the piston (42) to slide; one end of the elastic member (43) in the elastic direction is connected to the inner wall of the inflation channel (233); the other end of the elastic member (43) in the elastic direction is connected to the surface of the piston (42); the elastic member (43) has an elastic force that drives the piston (42) to slide in a direction away from the inflation channel (233), and the end of the piston (42) tends to protrude from the inner wall of the limiting cavity (231); and the inflation channel (233) is connected to the inner cavity of the sealing ring bag (41).

Images