A linear motor capable of reducing sliding friction

Abstract

The present invention discloses a linear motor capable of reducing sliding friction, relates to the field of linear motors, solves the problem that sliding friction is often used as contact between the mover and the stator of the existing linear motor, which greatly increases resistance and reduces workmanship, and now proposes the following scheme, which includes a linear motor capable of reducing sliding friction, including a stator plate, a guide rail, a mover block, a guide rail groove, a slide rail, an L-shaped groove body, a limit slide groove, a vertical slide groove, a horizontal opening, a vertical opening, a limit block, a spring A, a limit slideway, a resistance block, a cross plate A, a screw rod A, a pinion, a slide column, a slide plate, a spring B, a frame body, a roller A, a rotating plate A, a hinge seat, a guide rod, a top plate, a roller fitting mechanism, and a large gear, and a limit mechanism is installed on the large gear. The device has the advantages of conveniently switching the sliding friction of the linear motor to rolling friction, greatly reducing the sliding friction resistance, improving the kinetic energy conversion rate, and having strong stability in use.

Description

Technical Field

[0001] The invention relates to the field of linear motors, and in particular to a linear motor capable of reducing sliding friction. Background Art

[0002] A linear motor is a transmission device that converts electrical energy directly into linear motion mechanical energy without any intermediate conversion mechanism. It can be regarded as a rotating motor cut radially and unfolded into a plane. Linear motors are also called linear motors, linear motors, linear motors, and push rod motors. The most commonly used types of linear motors are flat plate type, U-slot type, and tube type. The typical composition of the coil is three-phase, and brushless commutation is achieved by Hall elements.

[0003] However, existing linear motors generally still use sliding friction as contact, which increases the friction between the stator and the mover, increases resistance, reduces the conversion of kinetic energy, and also increases wear between components.

[0004] After searching, the applicant obtained a Chinese invention patent application with publication number: CN114039471A and title: Linear Motor, which disclosed: a transmission base sliding assembly, a magnetic block is arranged on the transmission base, the sliding assembly includes a slide and a coil, the slide has a top support plate and a buckle arm, the transmission base is provided with a base outer inclined track surface, the slide is provided with a matching slide inner inclined track surface, a ball bearing for converting sliding friction into rolling friction is arranged between the base outer inclined track surface and the slide inner inclined track surface, and the coil is installed under the top support plate of the slide. The slide with a special structure is buckled on the base with a simple structure, and the buckle arm and the base are designed with matching inclined tracks, the material cost of the base and the overall control cost are greatly reduced, and the stability of relative motion is enhanced, which truly provides a linear motor with low cost, simple control, simple structure, small friction resistance and reasonable matching.

[0005] However, the above technical solution still uses sliding friction as the contact method, which still has a large friction resistance. Therefore, a linear motor that can reduce sliding friction is proposed. Summary of the invention

[0006] The purpose of the present invention is to provide a linear motor capable of reducing sliding friction, thereby solving the problem that sliding friction is often used as contact between the mover and the stator of the existing linear motor, which greatly increases resistance and reduces workmanship.

[0007] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a linear motor capable of reducing sliding friction, comprising a stator plate, a guide rail, a mover block, a guide rail groove, and a slide rail, wherein the mover block is provided with an L-shaped groove body on the side where the slide rails on both sides are far away from each other, and a limiting slide groove is provided on the side where the slide rails on both sides are close to each other, a vertical slide groove is provided on the upper inner wall of each limiting slide groove, horizontal openings are provided through the upper and lower sides of the bottom end of the L-shaped groove body, vertical openings are provided through the lower ends of the L-shaped groove bodies on both sides that are close to each other, the limiting slide groove is slidingly connected to the limiting block, and the limiting A plurality of springs A are fixedly connected in an array between one end of the block and the inner wall of the limiting slide groove, and the other end extends outside the limiting slide groove and is slidably connected to the guide rails on each side. A limiting slideway is provided at both ends of each vertical slide groove, and a resistance block is slidably connected in the limiting slideway. A horizontal plate A is fixedly connected between the front and rear resistance blocks in the same limiting slide groove, and a screw rod A is threadedly sleeved in the horizontal plate A. The upper end of the screw rod A is rotatably sleeved between the upper end of the movable block, and extends through the movable block above it, and a pinion is fixedly connected at the extended end, and the horizontal plate A is slidably connected in the vertical slide groove;

[0008] A sliding column is also fixedly connected between the upper and lower inner walls on the front and rear sides of the bottom end of the L-shaped groove body, and a sliding plate is slidably sleeved on the outer side surfaces of the upper and lower ends of each sliding column. The sliding plates on the upper and lower sides are away from each other and are respectively fixedly connected to the upper and lower inner walls of the L-shaped groove body by springs B. A frame is fixedly connected between two sliding plates at the same height in the front and rear of the same L-shaped groove body, and a plurality of rollers A are rotatably installed in the frame. Each of the frame bodies passes through a horizontal opening on one side, and the rollers A are rollingly connected to the guide rail surface on one side of each side. The sliding plates on the left and right sides are rotatably connected to a rotating plate A on one side away from each other, and the rotating plate A on the same side of the upper and lower sides is rotatably connected to a hinge seat together. The inner walls of the L-shaped grooves on both sides are fixedly connected to a guide rod, and a top plate is slidably sleeved on the outer side of each guide rod, and each top plate cooperates and abuts against the hinge seat on one side of each side. A roller fitting mechanism is also provided on the top plate, and a large gear is rotatably installed on the upper end surface of the movable block, and the large gear is meshed with a small gear, and a limiting mechanism is installed on the large gear.

[0009] Preferably, two parallel guide rails are fixedly installed on the upper end of the stator plate, and each guide rail is provided with a guide rail groove, and slide rails are provided on the left and right sides of the lower end of the mover block, and the slide rails slide on the outside of the guide rails, and a protective shell cover is also installed above the mover block, and the extending end of the limit block on the outside of the limit slide groove is in the slide rail and is slidably connected to the guide rail.

[0010] Preferably, a ring platform is fixedly sleeved in the middle of the outer side surface of each sliding column, and sliding plates are respectively provided on the upper and lower sides of the ring platform and sleeved on the outer side of the sliding column, and the spring B is also sleeved on the outer side of the sliding column.

[0011] Preferably, the abutment blocks on the left and right sides are respectively opposed to each other at one side away from each other and cooperate with one end of the limiting block on each side close to the inner wall of the limiting sliding groove.

[0012] Preferably, the roller laminating mechanism includes a mounting plate, a rotating plate B, a transverse plate B, a screw rod B, a threaded barrel, and a roller B. A mounting plate is fixedly connected between the front and rear two top plates on the same left and right sides. A plurality of rollers B are rotatably mounted on the side of the mounting plate close to the vertical opening, and the rollers B pass through the vertical openings on their respective sides and are rollingly connected to the guide rail surface. The mounting plates on both sides are rotatably connected to the rotating plates B on the sides away from each other, and the other end of each rotating plate B is rotatably connected to the transverse plate B. The upper end of the transverse plate B is fixedly connected to the screw rod B, and the upper end of the screw rod B is threadedly sleeved with a threaded barrel, the upper end of the threaded barrel is rotatably sleeved with the upper end surface of the movable block and extends to the upper end of the movable block, the upper extending end of the threaded barrel and the upper end of the pinion are fixedly connected with a transmission wheel, and a rotating belt is sleeved between the transmission wheels on the left and right sides.

[0013] Preferably, the mover block is rotatably sleeved with screws A on both the left and right sides of the large gear, and the small gears fixedly connected to the upper ends of the screws A on both sides are respectively located on the left and right sides of the large gear and meshed with the large gear.

[0014] Preferably, each mounting plate is fixedly connected to a push block at both ends near the vertical opening, and the push block slides in the guide rail groove on each side and cooperates with the limit block on each side at the outer end of the limit slide groove.

[0015] Preferably, the roller B slides between the upper and lower rollers A, the push blocks on the front and rear sides are respectively located at the front and rear ends of multiple rollers B rotatably mounted on their respective mounting plates, and the push blocks protrude from roller B on one side close to the vertical opening.

[0016] Preferably, the limiting mechanism includes a turning handle, a limiting slide rod, a pull plate, a spring C, a socket, and a clamping block. The upper end of the large gear is fixedly connected to the turning handle, and the front and rear ends of the turning handle are symmetrically fixedly connected to the limiting slide rods on both sides. A pull plate is also slidably sleeved between the two left and right limiting slide rods on the same front and rear sides. A spring C is fixedly connected between each pull plate and the turning handle, and the sides of the pull plates on the front and rear sides that are away from each other are also fixedly connected to the clamping blocks. The upper end face of the mover block is fixedly connected to the clamping seats on both sides, and the ends of the clamping blocks on the front and rear sides that are away from each other are respectively inserted into the clamping seats on their own sides.

[0017] Preferably, each of the springs C is sleeved on the outer side of the limiting slide rod on one side thereof, and the clamping seat is located at the front and rear sides of the large gear.

[0018] Compared with the related art, the linear motor provided by the present invention which can reduce sliding friction has the following beneficial effects:

[0019] 1. The present invention provides a linear motor capable of reducing sliding friction, by accommodating roller A in a horizontal opening and roller B in a vertical opening, while the extended end of the limit block at the limit slide groove is in the slide rail and slides in contact with the guide rail, so that the mover plate and the stator plate can slide stably. When it is necessary to reduce the sliding friction, the handle can be rotated to drive the large gear to rotate, thereby driving the small gear and the screw A to rotate, so that the cross plate A threadedly sleeved with the screw A can move upward, thereby driving the interference block to move upward, eliminating the interference with the limit block, and at the same time, the transmission wheel on each small gear rotates, thereby driving the threaded barrel to rotate through the rotating belt, so that the screw B and cross plate B on both sides can be pushed downward, thereby driving the rotating plate B to rotate, and at this time, the mounting plates on both sides Driven by the rotation of the rotating plate B, they will approach each other, and then push the mounting plates on both sides to approach each other. The rotatably mounted rollers B will pass through the vertical openings on their respective sides and fit with the guide rails on both sides on the sides away from each other to achieve a rolling connection. At the same time, a push block is installed on the mounting plate, and its side close to the vertical opening protrudes from roller B. Before roller B fits with the guide rail, the push block will first push the limit block that has cancelled the interference with the interference block and retract it into the limit slide groove. At this time, the limit blocks on both sides will not contact and slide with the guide rails on both sides approaching each other, but the rollers B on both sides will respectively roll and connect with the guide rails on both sides away from each other. The transition from sliding friction to rolling friction is realized, which greatly reduces the sliding friction force and realizes the switching adjustment of sliding friction and rolling friction.

[0020] 2. The present invention provides a linear motor capable of reducing sliding friction. When the rollers B on the left and right sides approach each other, the mounting plates on the left and right sides will also drive the top plates on the two sides to slide on the guide rods on their respective sides. After the mounting plates on the two sides and the rollers B approach each other for a certain distance, they will come into contact with the hinge seats, thereby synchronously driving the hinge seats on the left and right sides to approach each other, thereby driving the rotating plate A to rotate, thereby driving the slide plates slidingly connected to the upper and lower sides of each slide column to move away from each other, and compressing the springs B on their respective sides, thereby driving the upper and lower slide plates to rotate the mounting rollers A through the frame to move away from each other up and down, and pass through the horizontal openings on the upper and lower sides respectively, to achieve fit with the upper and lower sides of the guide rail, thereby achieving rolling connection between the rollers A and the upper and lower sides of the guide rail, further increasing the stability of the moving block on the stator plate, and at the same time, enabling the moving block and the stator plate to be supported and rolled on the upper and lower sides by the rollers A, and the rollers B enable the moving block and the stator plate to be supported and rolled on the left and right sides, thereby achieving the switching of sliding friction to fully stable rolling friction.

[0021] 3. The present invention provides a linear motor that can reduce sliding friction. The blocking of the block and the holder can be cancelled by pulling the pull plates on the front and rear sides closer to each other and compressing the spring C, and the handle can be rotated 180 degrees to switch the sliding friction to rolling friction to reduce the sliding friction. At the same time, due to the rotation of 180 degrees, after releasing the pull plates, the block can be respectively locked with the holders on the corresponding sides to achieve stable retention.

[0022] This device can conveniently switch the sliding friction of the linear motor to rolling friction, thereby greatly reducing the sliding friction resistance, improving the kinetic energy conversion rate, and having strong stability in use. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a structural schematic diagram of the present invention.

[0024] Figure 2 It is a schematic diagram of the structure of the present invention without a protective shell cover.

[0025] Figure 3 for Figure 2 Enlarged view of point A in the middle.

[0026] Figure 4 It is a cross-sectional view of the front view structure of the mover block of the present invention.

[0027] Figure 5 It is a cross-sectional view of the top view structure of the stator plate, the mover block and the guide rail section of the present invention.

[0028] Figure 6 It is a cross-sectional view of the side structure of the limiting sliding groove of the movable block of the present invention.

[0029] Figure 7 It is a bottom view structural schematic diagram of the mover block of the present invention.

[0030] Figure 8 It is a schematic diagram of the internal structure of the mover block of the present invention.

[0031] Fig. 9 It is a structural schematic diagram of the roller laminating mechanism of the present invention.

[0032] In the figure: 1, stator plate; 2, guide rail; 3, mover block; 4, protective shell cover; 5, guide rail groove; 6, slide rail; 7, L-shaped groove; 8, limit slide groove; 9, vertical slide groove; 10, horizontal opening; 11, vertical opening; 12, limit block; 13, spring A; 14, limit slideway; 15, resistance block; 16, cross plate A; 17, screw A; 18, slide column; 1801, slide plate; 1802, spring B; 1803, frame; 1804, roller A; 1805 , rotating plate A; 1806, hinged seat; 19, guide rod; 20, top plate; 21, mounting plate; 2101, rotating plate B; 2102, horizontal plate B; 2103, screw B; 2104, threaded cylinder; 2105, transmission wheel; 2106, rotating belt; 2107, roller B; 22, large gear; 2201, rotating handle; 2202, limiting slide bar; 2203, pulling plate; 2204, spring C; 2205, holder; 2206, block; 23, small gear. DETAILED DESCRIPTION

[0033] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments; based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0034] Embodiment 1:

[0035] See also Figure 1-9 The present invention provides a technical solution: a linear motor capable of reducing sliding friction, comprising a stator plate 1, a guide rail 2, a mover block 3, a guide rail groove 5, and a slide rail 6. Two parallel guide rails 2 are fixedly mounted on the upper end of the stator plate 1, and each guide rail 2 is provided with a guide rail groove 5, and the cross-section of each guide rail 2 is I-shaped in the conventional scheme in the technical field. Slide rails 6 are provided on the left and right sides of the lower end of the mover block 3, and the slide rails 6 slide on the outside of the guide rails 2, and the slide rails 6 are L-shaped, so that the slide rails 6 on both sides can be slidably inserted on the outsides of the parallel guide rails 2 on both sides away from each other, and a protective shell cover 4 is installed above the mover block 3 by bolts to facilitate protection of the top of the mover block 3.

[0036] The extending end of the limit block 12 outside the limit slide groove 8 is in the slide rail 6 and is slidably connected to the guide rail 2. The mover block 3 is provided with an L-shaped groove body 7 on the side where the slide rails 6 on both sides are away from each other, and a limit slide groove 8 is provided on the side where the slide rails 6 on both sides are close to each other, that is, the L-shaped groove bodies 7 on both sides are respectively provided on the inner wall of the slide rail 6 on the side where the I-shaped guide rails 2 are away from each other, and the limit slide grooves 8 on both sides are respectively provided on the inner wall of the slide rail 6 on the side where the I-shaped guide rails 2 are close to each other.

[0037] A vertical slide groove 9 is provided on the upper inner wall of each limiting slide groove 8, and horizontal openings 10 are provided on the upper and lower sides of the bottom of the L-shaped groove body 7, and vertical openings 11 are provided on the sides of the lower ends of the L-shaped groove bodies 7 close to each other. A limiting block 12 is connected to the limiting slide groove 8 for limiting sliding. A plurality of springs A13 are fixedly connected in an array between one end of the limiting block 12 and the inner wall of the limiting slide groove 8, and the other end extends to the outside of the limiting slide groove 8 and is slidably connected to the guide rails 2 on each side, that is, the limiting blocks 12 on the left and right sides extend away from each other from the limiting slide groove 8 on each side to the respective slide rails 6, and are slidably connected with the I-shaped guide rails 2 on both sides of the slide rails 6 that are close to each other.

[0038] A limited slideway 14 is provided at both ends of each vertical slide 9, and a resistance block 15 is slidably connected in the limited slideway 14. A horizontal plate A16 is fixedly connected between the front and rear resistance blocks 15 in the same limited slide 8, and a screw A17 is provided in the internal thread sleeve of the horizontal plate A16. The upper end of the screw A17 is rotatably sleeved between the upper end of the mover block 3, and extends above the mover block 3, and a pinion 23 is fixedly connected at the extended end, and the horizontal plate A16 is slidably connected in the vertical slide 9, and the resistance blocks on the left and right sides are fixedly connected. The blocks 15 are mutually away from one side and respectively cooperate with one end of the limit block 12 on each side close to the inner wall of the limit slide groove 8, that is, the vertical slide groove 9 is located above the limit slide groove 8 and is arranged through it, and the vertical slide groove 9 is slidably connected with a horizontal plate A16 up and down, and at the same time, the front and rear ends of the horizontal plate A16 are fixedly connected below with a resistance block 15 that can resist the limit block 12, and the resistance block 15 slides in the limit slideway 14 opened at the front and rear ends of each vertical slide groove 9, and the limit slideway 14 also penetrates the limit slide groove 8.

[0039] The inner walls of the L-shaped grooves 7 on both sides away from each other are fixedly connected with guide rods 19, and a top plate 20 is slidably sleeved on the outer side of each guide rod 19, and a roller laminating mechanism is also provided on the top plate 20.

[0040] The roller fitting mechanism includes a mounting plate 21, a rotating plate B2101, a horizontal plate B2102, a screw B2103, a threaded cylinder 2104, and a roller B2107. The mounting plate 21 is fixedly connected between the front and rear top plates 20 on the same left and right sides. A plurality of rollers B2107 are rotatably mounted on one side of the mounting plate 2 close to the vertical opening 11, and the rollers B2107 pass through the vertical openings 11 on their respective sides and are rollingly connected to the surface of the guide rail 2. Furthermore, the axial length of the roller B2107 is less than the height of the vertical opening 11, but greater than the height of the guide rail groove 5, so that the roller B2107 can slide out of the vertical opening 11 without contact, and realize rolling connection with the outer side surfaces of the guide rail 2 on the upper and lower sides of the guide rail groove 5.

[0041] The mounting plates 21 on both sides are rotatably connected to a rotating plate B2101 on one side away from each other, and the other end of each rotating plate B2101 is rotatably connected to a transverse plate B2102, and a screw rod B2103 is fixedly connected to the upper end of the transverse plate B2102, and a threaded sleeve 2104 is threadedly sleeved on the upper end of the screw rod B2103, and the upper end of the threaded sleeve 2104 is rotatably sleeved on the upper end surface of the movable block 3 and extends to the upper end of the movable block 3, and a transmission wheel 2105 is fixedly connected to the upper end of the threaded sleeve 2104 and the pinion 23, and a rotating belt 2106 is sleeved between the transmission wheels 2105 on the left and right sides, and the movable block 3 is rotatably sleeved with screw rods A17 on the left and right sides of the large gear 22, and the upper ends of the screw rods A17 on both sides are fixedly connected to the small gears 23. The gears 23 are respectively located on the left and right sides of the large gear 22 and are meshed with the large gear 22, so that the small gears 23 on both sides can be driven to rotate through the meshing connection by rotating the large gear 22, and then the screw A17 is synchronously driven to rotate, so that the cross plate A17 on the outside of which is threadedly sleeved is moved up first. In this process, the threaded barrel 2104 is also driven to rotate through the transmission belt 2106, so that the screw B2103 threadedly sleeved in the threaded barrel 2104 is moved down, and the cross plate B2102 is pushed down, thereby driving the rotating plate B2102 to rotate, and pushing the mounting plates 21 on both sides to approach each other, and pass through the vertical openings 11 on each side, to achieve rolling contact with the outer side surface of the guide rail 2 with an I-shaped cross-section.

[0042] The front and rear ends of each mounting plate 21 close to the vertical opening 11 are fixedly connected with push blocks 2108, which slide in the guide groove 5 on each side and cooperate with the limit block 12 on each side at the outer end of the limit slide groove 8, and the roller B2107 slides between the upper and lower rollers A1804, and the front and rear push blocks 2108 are respectively located at the front and rear ends of the multiple rollers B2107 rotatably installed on their respective mounting plates 21, and the push block 2108 protrudes from the roller B2107 on the side close to the vertical opening 11, so that after the large gear 22 is rotated, the horizontal plate A will be driven to move up first, and the resistance block 15 will move up to the limit slide 14, and the limit of the limit block 12 will be cancelled first. At this time, although it will be synchronized The mounting plates 21 on both sides are driven to approach each other, but in this process, the push blocks on both sides are synchronously driven to approach each other in the slide rail groove 5. At this time, after the stop block 15 cancels the limit of the limit block 12, the push block 2108 will contact with the limit block 12 and gradually compress the spring A13, so that the limit block 12 is received in the limit slide groove 8, and the sliding contact between the limit block 12 and the guide rails 2 on both sides is completely cancelled. When the limit block 12 is completely received in the limit slide groove 8, the roller B will also fit with the outer side of the guide rail 2 to realize the rolling connection between the movable block 3 and the stator plate 1 on the left and right sides, and cancel the sliding connection between the limit block 12 and the guide rail 2, and convert the sliding friction into rolling friction, so as to reduce the resistance of sliding friction and improve the kinetic energy conversion rate.

[0043] Embodiment 2:

[0044] See also Figure 1-5 , 8-9, the present invention provides a technical solution: a sliding column 18 is fixedly connected between the upper and lower inner walls of the front and rear sides of the bottom end of the L-shaped groove body 7, and a sliding plate 1801 is slidably sleeved on the outer side surfaces of the upper and lower ends of each sliding column 18, and the sliding plates 1801 on the upper and lower sides are respectively fixedly connected to the upper and lower inner walls of the L-shaped groove body 7 on one side away from each other, and a spring B1802 is fixedly connected, and a frame 1803 is fixedly connected between two sliding plates 1801 at the same height in the same L-shaped groove body 7, and a plurality of rollers A1804 are rotatably installed in the frame 1803, each frame 1803 passes through the horizontal opening 10 on one side of each frame, and the roller A1804 is rollingly connected to the surface of the guide rail 2 on one side of each frame, and a ring platform is fixedly sleeved in the middle of the outer side surface of each sliding column 18, and the upper and lower sides of the ring platform are respectively provided with sliding plates 1801, and are sleeved on the outer side of the sliding column 18, and the spring B1802 is also sleeved on the outer side of the sliding column 18.

[0045] That is, each sliding column 18 is slidably provided with a slide plate 1801 on the upper and lower sides of the ring platform fixedly mounted in the center of its outer side surface, and the upper and lower side slide plates 1801 are far away from each other and are fixedly connected to the upper and lower inner walls of the L-shaped groove body 7 by springs B1802 respectively. At the same time, the spring B1802 is sleeved on the outer side of the sliding column 18 to push the upper and lower side slide plates 1801 to approach each other, thereby driving the frame 1803 fixedly connected to the upper and lower side slide plates 1801 and the roller A1804 rotatably installed on the frame 1803 to be close to each other and stored in the L-shaped groove body 7.

[0046] The left and right sides of the skateboards 1801 are rotatably connected to the side away from each other with a rotating plate A1805, and the upper and lower sides of the rotating plate A1805 are rotatably connected to the hinge seat 1806 at one end away from the skateboard 1801. Each top plate 20 cooperates and abuts against the hinge seat 1806 on its own side. A large gear 22 is rotatably installed on the upper end surface of the mover block 3. The large gear 22 is meshed and connected with the small gear 23, and a limiting mechanism is installed on the large gear 22.

[0047] In this way, when the large gear 22 is rotated to drive the mounting plates 21 on both sides to approach each other, after the mounting plates 21 on both sides approach each other for a certain distance, the top plates 20 fixedly connected at the front and rear ends of the left and right mounting plates 21 will gradually approach each other until they collide with the hinge seats 1806 on their respective sides, thereby driving the rotating plate A1805 to rotate, thereby pushing the slide plates 1801 sliding on the upper and lower sides of the same slide column 18 away from each other, and compressing the pushing spring B, thereby driving the frame 1803 installed on the upper and lower slide plates 1801 and the roller A1804 rotatably installed on the frame 1803 to move away from each other and pass through the horizontal openings 10 on their respective sides, so that when the roller B2107 is in contact with the side of the guide rail 2, the upper and lower rollers A1804 can also synchronously achieve contact with the upper and lower sides of the I-shaped section of the guide rail 2, thereby realizing the rolling connection between the mover block 3 and the stator plate 1 on the upper and lower sides, thereby realizing the switching of the comprehensive rolling connection between the mover block 3 and the stator block 1, and increasing the stability of the left and right and upper and lower rolling connections.

[0048] Embodiment three:

[0049] See also Figure 3 The present invention provides a technical solution: the limiting mechanism includes a rotating handle 2201, a limiting slide bar 2202, a pull plate 2203, a spring C2204, a holder 2205, and a block 2206. The upper end of the large gear 22 is fixedly connected with the rotating handle 2201. The front and rear ends of the rotating handle 2201 are symmetrically fixedly connected with the limiting slide bars 2202 on both sides. A pull plate 2203 is also slidably sleeved between the left and right limiting slide bars 2202 on the same front and rear sides. A spring C2204 is fixedly connected between each pull plate 2203 and the rotating handle 2201. The sides of the pull plates 2203 on the front and rear sides that are away from each other are also fixedly connected with the block 2206. The upper end face of the mover block 3 is fixedly connected with the holder 2205 on both sides. The ends of the blocks 2206 on the front and rear sides that are away from each other are respectively inserted into the positions in cooperation with the holder 2205 on their own sides.

[0050] Each spring C2204 is sleeved on the outer side of the limiting slide bar 2202 on one side thereof, and the clamping seat 2205 is located at the front and rear sides of the large gear 22.

[0051] In this way, the pull plates 2203 on the front and rear sides are pulled closer to each other, and the spring C2204 is compressed to cancel the blocking of the block 2206 and the socket 2205, and the handle 2201 is driven to rotate 180 degrees, so that the sliding friction can be switched to rolling friction to reduce the sliding friction. At the same time, due to the rotation of 180 degrees, after releasing the pull plate 2203, the block 2206 can be respectively blocked with the socket 2205 on the corresponding side to achieve stable retention.

Claims

1. A linear motor capable of reducing sliding friction, comprising a stator plate (1), a guide rail (2), a mover block (3), a guide rail groove (5), and a slide rail (6), characterized in that: The movable block (3) is provided with an L-shaped groove body (7) on the side where the two side slide rails (6) are away from each other, and a limit slide groove (8) is provided on the side where the two side slide rails (6) are close to each other, and a vertical slide groove (9) is provided on the upper inner wall of each limit slide groove (8), and horizontal openings (10) are provided through the upper and lower sides of the bottom end of the L-shaped groove body (7), and vertical openings (11) are provided through the lower ends of the L-shaped groove bodies (7) on both sides that are close to each other. The limiting slide groove (8) is slidingly connected to a limiting block (12), one end of the limiting block (12) is fixedly connected to the inner wall of the limiting slide groove (8) in an array with a plurality of springs A (13), and the other end extends outside the limiting slide groove (8) and is slidingly connected to the guide rail (2) on one side thereof, and each of the vertical slide grooves (9) is provided with a limiting slideway (14) at both ends, and a resisting block (15) is slidingly connected inside the limiting slideway (14); A transverse plate A (16) is fixedly connected between the front and rear abutment blocks (15) in the same limiting slide groove (8), and a screw rod A (17) is sleeved on the inner thread of the transverse plate A (16). The upper end of the screw rod A (17) is rotatably sleeved between the upper end of the movable block (3), and passes through the movable block (3) and extends above it, and a pinion gear (23) is fixedly connected at the extended end, and the transverse plate A (16) is slidably connected in the vertical slide groove (9); A slide column (18) is fixedly connected between the upper and lower inner walls at the front and rear sides of the bottom end of the L-shaped groove body (7); a slide plate (1801) is slidably sleeved on the outer side surfaces at the upper and lower ends of each slide column (18); a spring B (1802) is fixedly connected between the upper and lower inner walls of the L-shaped groove body (7) at one side away from each other; a frame (1803) is fixedly connected between two slide plates (1801) at the same height at the front and rear sides of the same L-shaped groove body (7); A plurality of rollers A (1804) are rotatably mounted in the frame (1803), each of the frames (1803) slides through a horizontal opening (10) on one side thereof, and the rollers A (1804) are rollingly connected to the surface of the guide rail (2) on one side thereof, the left and right slide plates (1801) are rotatably connected to the sides away from each other with a rotating plate A (1805), and the ends of the rotating plates A (1805) on the same upper and lower sides away from the slide plates (1801) are rotatably connected to a hinge seat (1806); The inner walls of the L-shaped groove bodies (7) on both sides are fixedly connected to guide rods (19) on one side away from each other, and a top plate (20) is slidably sleeved on the outer side of each guide rod (19), and each top plate (20) cooperates with the hinge seat (1806) on one side thereof, and a roller fitting mechanism is also provided on the top plate (20), and a large gear (22) is rotatably installed on the upper end surface of the movable block (3), and the large gear (22) is meshed and connected with a small gear (23), and a limiting mechanism is installed on the large gear (22); The roller fitting mechanism comprises a mounting plate (21), a rotating plate B (2101), a horizontal plate B (2102), a screw rod B (2103), a threaded cylinder (2104), and a roller B (2107); the mounting plate (21) is fixedly connected between the front and rear top plates (20) on the same left and right sides; a plurality of rollers B (2107) are rotatably mounted on a side of the mounting plate (21) close to the vertical opening (11), and the rollers B (2107) slide through the vertical openings (11) on their respective sides and are rollingly connected to the surface of the guide rail (2); The mounting plates (21) on both sides are rotatably connected to a rotating plate B (2101) at one side away from each other, and the other end of each rotating plate B (2101) is rotatably connected to a transverse plate B (2102), and the upper end of the transverse plate B (2102) is fixedly connected to a screw rod B (2103), and the upper end of the screw rod B (2103) is threadedly sleeved with a threaded barrel (2104), the upper end of the threaded barrel (2104) is rotatably sleeved with the upper end surface of the movable block (3), and extends to the upper end of the movable block (3), the upper side extension end of the threaded barrel (2104) and the upper end of the pinion (23) are fixedly connected to a transmission wheel (2105), and a rotating belt (2106) is sleeved between the transmission wheels (2105) on the left and right sides.

2. A linear motor capable of reducing sliding friction according to claim 1, characterized in that: Two parallel guide rails (2) are fixedly mounted on the upper end of the stator plate (1), and each guide rail (2) is provided with a guide rail groove (5). Slide rails (6) are provided on both left and right sides of the lower end of the mover block (3), and the slide rails (6) slide on the outside of the guide rails (2). A protective shell cover (4) is also mounted above the mover block (3). The extending end of the limit block (12) on the outside of the limit slide groove (8) is located in the slide rail (6) and is slidably connected to the guide rail (2).

3. A linear motor capable of reducing sliding friction according to claim 1 or 2, characterized in that: A ring platform is fixedly mounted in the middle of the outer side surface of each sliding column (18), and sliding plates (1801) are respectively arranged on the upper and lower sides of the ring platform and mounted on the outer side of the sliding column (18), and the spring B (1802) is also mounted on the outer side of the sliding column (18).

4. A linear motor capable of reducing sliding friction according to claim 3, characterized in that: The abutment blocks (15) on the left and right sides are mutually away from one side and respectively abut against one end of the limiting block (12) on one side close to the inner wall of the limiting sliding groove (8).

5. A linear motor capable of reducing sliding friction according to claim 4, characterized in that: The movable block (3) is rotatably mounted with screw rods A (17) on both left and right sides of the large gear (22); small gears (23) fixedly connected to the upper ends of the screw rods A (17) on both sides are respectively located on the left and right sides of the large gear (22) and meshed with the large gear (22).

6. A linear motor capable of reducing sliding friction according to claim 5, characterized in that: Each of the mounting plates (21) is fixedly connected to a push block (2108) at both ends on the front and rear sides of the side close to the vertical opening (11). The push block (2108) slides in the guide rail groove (5) on its own side and cooperates with the limit block (12) on its own side at the outer end of the limit slide groove (8).

7. A linear motor capable of reducing sliding friction according to claim 6, characterized in that: The roller B (2107) slides between the upper and lower rollers A (1804), and the push blocks (2108) on the front and rear sides are respectively located at the front and rear ends of the multiple rollers B (2107) rotatably mounted on their respective mounting plates (21), and the push blocks (2108) protrude from the rollers B (2107) on one side close to the vertical opening (11).

8. The linear motor capable of reducing sliding friction according to claim 4, characterized in that: The limiting mechanism comprises a rotating handle (2201), a limiting slide bar (2202), a pulling plate (2203), a spring C (2204), a clamping seat (2205), and a clamping block (2206); the upper end of the large gear (22) is fixedly connected with the rotating handle (2201); the front and rear ends of the rotating handle (2201) are symmetrically fixedly connected with the limiting slide bars (2202) on both sides; a pulling plate (2203) is also slidably sleeved between the two limiting slide bars (2202) on the same side; and a spring C (2204) is fixedly connected between each pulling plate (2203) and the rotating handle (2201); The pulling plates (2203) on the front and rear sides are fixedly connected to the sides away from each other with clamping blocks (2206), and the upper end surface of the movable block (3) is fixedly connected to the front and rear sides with clamping seats (2205), and the clamping blocks (2206) on the front and rear sides are respectively inserted into the clamping positions with the ends away from each other and the clamping seats (2205) on their respective sides.

9. A linear motor capable of reducing sliding friction according to claim 8, characterized in that: Each of the springs C (2204) is sleeved on the outer side of the limiting slide bar (2202) on one side thereof, and the clamping seat (2205) is located at the front and rear sides of the large gear (22).

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