CN115781427A

CN115781427A - Cylinder liner inner wall equipment of polishing

Info

Publication number: CN115781427A
Application number: CN202310078617.4A
Authority: CN
Inventors: 韩翠霞; 赵新治; 郭佩玉; 郭茂亮; 袁文帅
Original assignee: Henan Xinxiang Piston Co ltd
Current assignee: Henan Xinxiang Piston Co ltd
Priority date: 2023-02-08
Filing date: 2023-02-08
Publication date: 2023-03-14
Anticipated expiration: 2043-02-08
Also published as: CN115781427B

Abstract

The invention discloses a cylinder sleeve inner wall polishing device which comprises a lifting beam, a rotary rod, an elastic connecting mechanism and an adjustable polishing head component, wherein the adjustable polishing head component comprises a polishing lead screw, a polishing upper disc, a polishing lower disc, an upper adjusting conical sleeve, a lower adjusting conical sleeve, a radial adjusting seat and an oilstone fixing mechanism; the polishing head can move at multiple angles, and can vertically move downwards along the gravity direction under the action of gravity, so that the abrasion of the polishing head during polishing is reduced, and the service life is prolonged.

Description

Cylinder liner inner wall equipment of polishing

Technical Field

The invention relates to the technical field of cylinder sleeve inner wall polishing, in particular to a cylinder sleeve inner wall polishing device.

Background

The cylinder sleeve is the cylinder sleeve for short and is embedded in the cylinder barrel of the cylinder body; after the cylinder sleeve is cast and formed, the inner wall of the cylinder sleeve needs to be polished, so that the inner wall of the cylinder sleeve is smooth, the resistance is reduced, and the cylinder pulling phenomenon of a diesel engine is avoided; what the steamer generally adopted is large-scale diesel engine, the cylinder liner volume that adopts is also big, the degree of depth that needs to polish is also more dark, conventional equipment of polishing is difficult to satisfy the needs of polishing, the head of polishing of present polisher is mostly fixed knot structure, the regulation of the diameter of can't polishing, the cylinder liner of different internal diameters polishes as required, just need change the head of polishing, complex operation, and polish head and polish pole rigid connection, when the center of head and cylinder liner is inconsistent, lead to polishing out condemned product, damage the head of polishing even.

The Chinese patent application number of 201610783480.2 discloses a honing machine, wherein the honing head is connected with a rotary feed mechanism, the honing head cannot adjust the polishing diameter, and is rigidly connected with the rotary feed mechanism through a rotating shaft, the honing head has higher requirement on the concentricity of a polishing workpiece, the polishing product is easy to scrap, and the honing head is in rigid contact with the inner wall of the polishing workpiece, so that the abrasion pressure of the honing head is reduced, and the service life of the honing head is shortened; the same problem also exists in chinese patent application nos. 201110106444.X and 201120101753.3, and patent application No. 201110106444.X discloses that a cone tensioning mandrel pushes a top pin, and an oilstone seat is pushed by the top pin to enable each oilstone to be tensioned on a machined inner hole, so that although the honing tool can adapt to polishing work of inner walls of different workpieces, after a connector is installed on a honing rod, how to apply force to the cone tensioning mandrel is performed, in order to prevent contraction, how to fix the top pin after tensioning, and when the honing rod is downward, the honing rod is hard to contact with the workpiece, and when collision occurs, the honing head is easily damaged; the requirement of practical use cannot be met, so that the improved technology is urgently needed in the market to solve the problems.

Disclosure of Invention

The invention aims to overcome the existing defects and provides a cylinder sleeve inner wall polishing device, wherein a polishing head can move in multiple angles and vertically downwards along the gravity direction under the action of gravity, so that the abrasion of the polishing head during polishing work is reduced, the service life is prolonged, one polishing head can meet the polishing work of the inner walls of cylinder sleeves with different specifications, the polishing qualification rate is high, and the problems in the background technology can be effectively solved.

In order to achieve the purpose, the invention provides the following technical scheme: the utility model provides a cylinder liner inner wall equipment of polishing, including the lift crossbeam, the rotary rod, elastic connection mechanism and adjustable polishing head subassembly, adjustable polishing head subassembly includes the lead screw of polishing, polish the upper disc, polish lower disc, go up and adjust the taper sleeve, lower adjustment taper sleeve, radial adjustment seat and oilstone fixed establishment, polish and pass through anchorage bar fixed connection together between the upper disc and polish lower disc, the lower extreme of lead screw of polishing passes the upper disc of polishing to the below of polishing lower disc, the lower part of the lead screw of polishing is provided with forward screw thread and reverse screw thread, it is connected with forward screw thread to go up to adjust the taper sleeve, lower adjustment taper sleeve and reverse screw thread, it is provided with the direction slide bar to polish between the upper disc and the lower disc, the direction slide bar runs through in proper order and adjusts taper sleeve and lower adjustment taper sleeve, the lower surface of polishing upper disc is provided with radial spout along the circumferencial direction and the upper surface of polishing lower disc respectively, radial adjustment seat sets up the upper end and the lower end of polishing between disc and polishing upper disc of radial adjustment seat respectively with radial sliding connection with radial adjustment slide bar, the buffer clearance of the rotary rod is provided with the buffer motor spare of polishing, the movable connection of rotary rod in this rotary rod, the lift crossbeam is connected with the output shaft.

Further, elastic connection mechanism includes adapter sleeve and connector, the inner wall of adapter sleeve is provided with the buffering spout along the circumferencial direction, the lower extreme of buffering spout does not run through the adapter sleeve, the upper end of connector is provided with the sliding connection lug along the circumferencial direction, sliding connection lug and buffering spout sliding connection, the upper end of adapter sleeve is fixed with the guide holder, be provided with vertical buffer spring between the upper end of connector and the last guide holder, the guide holder under the lower extreme fixedly connected with of connector, the upper surface outside edge of lower guide holder is provided with the guide pillar, be provided with the guide pin bushing on the last guide holder, the top of guide pin bushing is worn to the upper end of guide pillar, the upper end of guide pillar is fixed with the dog, gear motor's output shaft and last guide holder fixed connection, lower guide holder and rotary rod swing joint.

Further, the upper end and the lower extreme of rotary rod are provided with movable connection subassembly respectively, and movable connection subassembly includes activity joint I, activity joint II and activity joint III, and activity joint I rotates through the pin with activity joint II to be connected, moves and connects II and connect through pin activity joint III, and the upper and lower both ends rotation opposite direction of activity joint II.

Further, a bearing is arranged between the polishing screw rod and the polishing upper disc, a baffle is arranged at the lower end of the polishing screw rod, a thrust bearing is arranged between the baffle and the polishing lower disc, and a power transmission mechanism is arranged above the polishing upper disc.

Further, power transmission mechanism includes the transmission ring, the transmission ring is fixed on the upper portion of the lead screw of polishing, the transmission ring is provided with the round pin shaft hole along the circumferencial direction, the round pin shaft hole sets up to six, the last fixed surface who polishes the upper disc has the bulge loop, be provided with the hole that corresponds with the round pin shaft hole on the bulge loop, the upper surface edge of bulge loop is provided with the scale ring, the side of transmission ring is provided with the pointer that corresponds with the scale ring, the round pin shaft hole passes through the transmission pin shaft with the hole on the bulge loop and is connected, realize connecing through the hole realization on transmission pin shaft hole and the bulge loop, realize the transmission of power, transmission pin shaft can select arbitrary three round pin shaft hole to connect during the connection, this three round pin shaft hole needs the interval connection.

Furthermore, a fixed steel sleeve is arranged between the forward thread and the reverse thread on the polishing lead screw, the fixed steel sleeve can be fixed by bolts and can also be fixed by adopting a welding mode, a spring sleeve is welded on the outer side face of the fixed steel sleeve, a reset spring is fixed in the spring sleeve, the middle of the inner side face of the radial adjusting seat is a vertical face, the upper side and the lower side of the vertical face are respectively provided with an inclined face, the inclined faces are respectively attached to the upper adjusting conical sleeve and the lower adjusting conical sleeve, and the other end of the reset spring is fixedly connected with the vertical face.

Further, oilstone fixed establishment is including polishing oilstone and oilstone fixing base, the upper end and the lower extreme of oilstone fixing base set up respectively in radial spout, polish on the groove of oilstone installation oilstone fixing base, and through screw fixed connection, the setting of buffer clearance of polishing is between oilstone fixing base and radial regulation seat, the lateral surface upper portion and the lower part of radial regulation seat are provided with the dashpot respectively, the elastic component is fixed between dashpot bottom and oilstone fixing base, the elastic component is spring or rubber post, the rubber post is the cydariform structure, and the pre-buried screw rod that is used for fixed connection in the both ends of rubber post, the elastic component not only plays the effect to the reliable support of oilstone fixing base, certain elastic buffer ability still has, play the cushioning effect.

Furthermore, the top setting of lifting beam is provided with the back timber, and the top surface middle part of back timber is provided with the hydro-cylinder, and the flexible end of hydro-cylinder is worn to the below of back timber and the link fixed connection on the lifting beam, can drive lifting beam through the flexible of hydro-cylinder and reciprocate, and then realizes adjustable polishing head subassembly attack at the in-process of polishing, satisfies the work of polishing of different length cylinder liners.

Further, the both sides of lifting beam are provided with a supporting cylinder respectively, the lower extreme of a supporting cylinder is fixed on prefabricated basis, be provided with the slide rail on the corresponding medial surface of a supporting cylinder, be provided with equidistant distribution's welding piece between slide rail and the supporting cylinder, increase the joint strength between slide rail and the supporting cylinder through the welding piece, lifting beam's both ends are provided with the slider, slider and slide rail sliding connection, the slide rail plays spacing and the effect of direction to lifting beam lift in-process, be provided with the supporting box between supporting cylinder's upper end and the back timber, this supporting box communicates with the inside hollow structure of a supporting cylinder, the left and right sides of back timber is provided with the support, be provided with the leading wheel on the support, the inside of a supporting cylinder is provided with the balancing weight, be connected with wire rope on the balancing weight, leading wheel and lifting beam fixed connection are walked around to wire rope's the other end, provide the pulling force for lifting beam upper assembly through the balancing weight, play the effect of balancing weight.

Further, the bottom fixing assembly comprises a bottom plate, a support ring, a support block and a pressing plate, the support block is fixedly arranged along the circumferential direction of the bottom plate, the support ring is placed on the support block, one end of the pressing plate is pressed on the support ring, a cushion block is arranged between the other end of the pressing plate and the support block, a T-shaped groove is formed in the support block, a bolt hole is formed in the pressing plate, a T-shaped bolt is arranged in the T-shaped groove, the T-shaped bolt and the bolt hole are fastened through a nut, an annular groove is formed in the upper surface of the support ring, and the annular groove is used for placing a cylinder sleeve.

Compared with the prior art, the invention has the beneficial effects that:

1. this head of polishing can carry out multi-angle free activity through movable connection subassembly to can be perpendicular downwards along the direction of gravity under the effect of gravity, when polishing adjustable head subassembly lower extreme atress is uneven, can realize self-adaptation balanced, ensure the effect of polishing and the quality of polishing, can reduce the wearing and tearing of the during operation of polishing simultaneously to the head of polishing, extension working life, a head of polishing can satisfy the work of polishing of different specification cylinder liner inner walls, and the qualification rate of polishing is high moreover.

2. The upper polishing disc and the lower polishing disc are reliably and fixedly connected together through the fastening rod, the structure is stable and firm, the upper polishing disc and the lower polishing disc are formed in a split structure, the processing is convenient, easily-damaged parts can be replaced conveniently, the polishing screw rod rotates, the upper adjusting conical sleeve and the lower adjusting conical sleeve can move in opposite directions, the upper adjusting conical sleeve and the lower adjusting conical sleeve respectively push the upper part and the lower part of the radial adjusting seat to move, the polishing diameter can be adjusted, and the polishing requirements of cylinder sleeves of different specifications are met.

3. In the process of polishing, the elastic piece enables the oilstone fixing mechanism to have certain elasticity, hard contact between the elastic piece and the sleeve is avoided in a sealing mode, abrasion to the polished oilstone is reduced, the service life is prolonged, and the buffer distance of the oilstone fixing mechanism is limited by the polishing buffer gap.

4. The adjustable polishing head component is provided with the vertical buffer spring, the rotating rod has the capability of upwards buffering external force through the vertical buffer spring, the adjustable polishing head component is prevented from being damaged due to the impact of the external force, when the inner wall of other workpieces with uneven surfaces is polished, the adjustable polishing head component is upwards buffered due to the vertical buffer spring when the stress of the adjustable polishing head component is larger, the protection effect is achieved, and the practicability of the device is improved.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic view of an adjustable grinding head assembly of the present invention;

FIG. 3 is a schematic cross-sectional view of an adjustable grinding head assembly according to the present invention;

FIG. 4 is a schematic view of a connection structure of an adjusting seat and an oilstone fixing seat according to the present invention;

FIG. 5 is a schematic view of the internal structure of the grinding mechanism of the present invention;

FIG. 6 is a schematic view of the elastic connecting mechanism of the present invention;

FIG. 7 is a schematic cross-sectional view of the elastic connecting mechanism of the present invention;

FIG. 8 is a schematic view of a rotary lever according to the present invention;

FIG. 9 is a schematic view of the bottom mounting assembly of the present invention;

FIG. 10 is a schematic view of the counterweight mechanism of the present invention;

FIG. 11 is a schematic view of a fastening rod of the present invention;

FIG. 12 is a schematic top view of the present invention.

In the figure: 1 supporting cylinder, 2 prefabricated foundation, 3 bottom fixing component, 4 adjustable polishing head component, 5 rotating rod, 6 sliding rail, 7 welding block, 8 lifting beam, 9 sliding block, 10 speed reducing motor, 11 oil cylinder, 12 top beam, 13 support, 14 guide wheel, 15 steel wire rope, 16 supporting box body, 17 connecting frame, 18 elastic connecting mechanism, 19 oilstone fixing seat, 20 reset spring, 21 polishing oilstone, 22 upper adjusting taper sleeve, 23 convex ring, 24 scale ring, 25 transmission pin shaft, 26 polishing screw rod, 27 transmission ring, 28 pin shaft hole, 29 indicating needle, 30 upper polishing disc, 31 forward thread, 32 fixed steel bushing, 33 reverse thread, 34 lower polishing disc, 35 lower adjusting taper sleeve, 3 lower adjusting taper sleeve 36 thrust bearing, 37 spring sleeve, 38 inclined plane, 39 vertical plane, 40 bearing, 41 fastening rod, 42 radial sliding groove, 43 guide sliding rod, 44 connecting sleeve, 45 connecting head, 46 lower guide seat, 47 guide pillar, 48 guide sleeve, 49 retaining head, 50 upper guide seat, 51 buffer sliding groove, 52 vertical buffer spring, 53 sliding connecting convex block, 54 movable joint I, 55 movable joint II, 56 movable joint III, 57 bolt hole, 58 bottom plate, 59 supporting ring, 60 annular groove, 61 supporting block, 62 cushion block, 63 pressing plate, 64T-shaped bolt, 65 balancing weight, 66T-shaped groove, 67 baffle, 68 polishing buffer gap, 69 rubber column, 70 buffer groove and 71 radial adjusting seat.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1-12, the present invention provides a technical solution: a cylinder sleeve inner wall polishing device comprises a lifting beam 8, a rotating rod 5, an elastic connecting mechanism 18 and an adjustable polishing head assembly 4, wherein the adjustable polishing head assembly 4 comprises a polishing lead screw 26, an upper polishing disc 30, a lower polishing disc 34, an upper adjusting conical sleeve 22, a lower adjusting conical sleeve 35, a radial adjusting seat 71 and an oilstone fixing mechanism, the upper polishing disc 30 and the lower polishing disc 34 are fixedly connected together through a fastening rod 41, the upper polishing disc 30 and the lower polishing disc 34 are fixedly connected together through the fastening rod 41, the structure is stable and firm, the cylinder sleeve inner wall polishing device is formed in a split structure, the cylinder sleeve inner wall polishing device is convenient to process, wearing parts can be replaced conveniently, a reserved hole is formed in the edge of the upper polishing disc 30, a tool can be connected with the reserved hole, then the upper polishing disc 30 is rotated, the polishing oilstone 21 can be abutted against the inner wall of a workpiece, the lower end of the polishing lead screw 26 penetrates through the lower portion of the upper polishing disc 30 to the lower polishing disc 34, the lower part of the polishing screw rod 26 is provided with a forward thread 31 and a reverse thread 33, the upper adjusting conical sleeve 22 is connected with the forward thread 31, the lower adjusting conical sleeve 35 is connected with the reverse thread 33, the polishing screw rod 26 rotates to realize that the upper adjusting conical sleeve 22 and the lower adjusting conical sleeve 35 move in opposite directions, the upper adjusting conical sleeve 22 and the lower adjusting conical sleeve 35 respectively push the upper part and the lower part of the radial adjusting seat 71 to move, further, the polishing diameter can be adjusted, the polishing requirements of cylinder sleeves of different specifications are met, a guide slide rod 43 is arranged between the polishing upper disc 30 and the polishing lower disc 34, the guide slide rod 43 sequentially penetrates through the upper adjusting conical sleeve 22 and the lower adjusting conical sleeve 35, the upper adjusting conical sleeve 22 and the lower adjusting conical sleeve 35 can slide on the guide slide rod 43, and the guide effect on the upper adjusting conical sleeve 22 and the lower adjusting conical sleeve 35 is achieved through the guide slide rod 43, the upper adjusting conical sleeve 22 and the lower adjusting conical sleeve 35 are prevented from rotating, the lower surface of the upper polishing disc 30 and the upper surface of the lower polishing disc 34 are respectively provided with a radial sliding groove 42 along the circumferential direction, the radial sliding groove 42 is outwards arranged along the center of the disc, a radial adjusting seat 71 is arranged between the upper polishing disc 30 and the lower polishing disc 34, the upper end and the lower end of the radial adjusting seat 71 are respectively connected with the radial sliding groove 42 in a sliding manner, the radial sliding groove 42 limits the radial adjusting seat 71 and the oilstone fixing mechanism to play a role in guiding and enable the radial adjusting seat 71 to stably move outwards or inwards, a polishing buffer gap 68 is reserved between the outer side surface of the radial adjusting seat 71 and the oilstone fixing mechanism, this buffer clearance 68 of polishing is provided with the elastic component in, in the process of polishing, the elastic component makes oilstone fixed establishment have certain elasticity, it avoids hard contact to seal with the sleeve, reduce the wearing and tearing to polish oilstone 21, increase of service life, buffer clearance 68 of polishing prescribes a limit to oilstone fixed establishment buffer distance, be fixed with gear motor 10 on the lift crossbeam 8, gear motor 10's output shaft passes through elastic connection mechanism 18 and rotary rod 5 swing joint, the lower extreme of rotary rod 5 and the upper end swing joint of the lead screw 26 of polishing, also can choose other power drive mechanism for use, for example, adopt motor drive transmission case, the motor can adopt sprocket connection or gear connection with the transmission case, the transmission case output shaft passes through the shaft coupling and is connected with the lead screw 26 of polishing.

The elastic connection mechanism 18 comprises a connection sleeve 44 and a connection head 45, a buffer sliding groove 51 is arranged on the inner wall of the connection sleeve 44 along the circumferential direction, the lower end of the buffer sliding groove 51 does not penetrate through the connection sleeve 44, a sliding connection bump 53 is arranged on the upper end of the connection head 45 along the circumferential direction, the sliding connection bump 53 is in sliding connection with the buffer sliding groove 51, the transmission of rotating force can be realized, the connection head 45 can also have the capability of moving upwards, an upper guide seat 50 is fixed on the upper end of the connection sleeve 44, a vertical buffer spring 52 is arranged between the upper end of the connection head 45 and the upper guide seat 50, the vertical buffer spring 52 enables the rotating rod 5 to have the capability of buffering external force upwards, the adjustable polishing head assembly 4 is prevented from being damaged due to impact of external force, when the inner wall of other workpieces with unevenness is polished, the vertical buffer spring 52 enables the adjustable polishing head assembly 4 to bear large force, the protection effect is achieved, the practicability of the device is improved, a lower guide seat 46 is fixedly connected to the upper end of the guide sleeve 47 fixed on the upper guide sleeve 47 of the guide post, and the guide sleeve 47, and the guide sleeve 48 fixed on the guide sleeve 48, and the guide sleeve 5, and the guide sleeve 47, and the motor 5, and the guide sleeve 48 are connected, and the motor 10.

The upper end and the lower extreme of rotary rod 5 are provided with movable connection subassembly respectively, movable connection subassembly includes activity joint I54, activity joint II 55 and activity joint III 56, activity joint I54 passes through the pin rotation with activity joint II 55 and is connected, activity joint II 55 passes through pin activity joint III 56 and connects, and the upper and lower both ends of activity joint II 55 rotate opposite direction, activity joint can adopt the mode of bolt fastening to be connected among rotary rod 5 and the movable connection subassembly, activity connection subassembly can make the adjustable polishing head subassembly 4 of below rotate to not equidirectional, thereby make adjustable polishing head subassembly 4 realize perpendicularly downwards under the effect of gravity, adjustable polishing head subassembly 4 lower extreme atress is not at ordinary times when polishing, can realize self-adaptation is balanced, ensure effect and the quality of polishing.

The bearing 40 is arranged between the polishing lead screw 26 and the polishing upper disc 30, the baffle 67 is arranged at the lower end of the polishing lead screw 26, the thrust bearing 36 is arranged between the baffle 67 and the polishing lower disc 34, the thrust bearing 36 plays a role in supporting the polishing lower disc 34, the thrust bearing 36 and the bearing 40 can reduce the rotating resistance of the adjustable polishing head assembly 4, the rotation is more flexible, and the power transmission mechanism is arranged above the polishing upper disc 30.

The power transmission mechanism comprises a transmission circular ring 27, the transmission circular ring 27 is fixed on the upper portion of a polishing screw rod 26, pin shaft holes 28 are formed in the transmission circular ring 27 in the circumferential direction, the number of the pin shaft holes 28 is six, a convex ring 23 is fixed on the upper surface of a polishing upper circular disc 30, holes corresponding to the pin shaft holes 28 are formed in the convex ring 23, a scale ring 24 is arranged at the edge of the upper surface of the convex ring 23, an indicating needle 29 corresponding to the scale ring 24 is arranged on the side surface of the transmission circular ring 27, the rotating angle can be clearly known through the indicating needle 29, the moving distance of the oilstone fixing mechanism can be known by judging the rotating number and the rotating angle, the judgment can be sequentially carried out during use, the pin shaft holes 28 are connected with the holes in the convex ring 23 through a transmission pin shaft 25, the pin shaft holes 28 and the holes in the convex ring 23 are connected through the transmission pin shaft 25, the transmission power transmission is realized, any three pin shaft holes 28 can be connected through the transmission pin shaft 25, and the three pin shaft holes 28 need to be connected at intervals.

The middle of the forward thread 31 and the reverse thread 33 on the polishing screw rod 26 is provided with a fixed steel sleeve 32, the fixed steel sleeve 32 can be fixed by bolts, the fixed steel sleeve can also be fixed by adopting a welding mode, the outer side surface of the fixed steel sleeve 32 is welded with a spring sleeve 37, a return spring 20 is fixed in the spring sleeve 37, the middle part of the inner side surface of the radial adjusting seat 71 is a vertical surface 39, the upper side and the lower side of the vertical surface 39 are respectively set to be an inclined surface 38, the inclined surface 38 is respectively attached to an upper adjusting conical sleeve 22 and a lower adjusting conical sleeve 35, the inclined surface 38 is matched with the inclined surface of the conical sleeve, the contact area between the adjusting conical sleeve and the radial adjusting seat 71 is increased, reliable supporting force is provided for the radial adjusting seat 71, the structure is more stable, the other end of the return spring 20 is fixedly connected with the vertical surface 39, when the oilstone fixing mechanism is reset, the radial adjusting seat 71 is pulled to move in a radial sliding groove 42 through the return spring 20, and the reset movement of the oilstone fixing mechanism is realized.

Oilstone fixed establishment is including polishing oilstone 21 and oilstone fixing base 19, the upper end and the lower extreme of oilstone fixing base 19 set up respectively in radial spout 42, polish oilstone 21 and install on the groove of oilstone fixing base 19, and through screw fixed connection, it sets up between oilstone fixing base 19 and radial regulation seat 71 to polish buffering clearance 68, the lateral surface upper portion and the lower part of radial regulation seat 71 are provided with dashpot 70 respectively, the elastic component is fixed between dashpot 70 bottom and oilstone fixing base 19, the elastic component is spring or rubber post, the rubber post is the drum type structure, and the both ends of rubber post are pre-buried to have the screw rod that is used for fixed connection, the elastic component not only plays the effect to oilstone fixing base 19 reliable support, still has certain elastic buffer capacity, play the cushioning effect.

The top setting of lifting beam 8 is provided with back timber 12, and the top surface middle part of back timber 12 is provided with hydro-cylinder 11, and the flexible end of hydro-cylinder 11 is worn to the below of back timber 12 and the link 17 fixed connection on the lifting beam 8, can drive lifting beam 8 through the flexible of hydro-cylinder 11 and reciprocate, and then realizes adjustable sanding head subassembly 4 at the in-process of polishing and attack, satisfies the work of polishing of different length cylinder liners.

The both sides of a lift crossbeam 8 are provided with supporting cylinder 1 respectively, the lower extreme of supporting cylinder 1 is fixed on prefabricated basis 2, be provided with slide rail 6 on the corresponding medial surface of supporting cylinder 1, be provided with equidistant distribution's welding piece 7 between slide rail 6 and the supporting cylinder 1, increase the joint strength between slide rail 6 and the supporting cylinder 1 through welding piece 7, the both ends of lift crossbeam 8 are provided with slider 9, slider 9 and slide rail 6 sliding connection, slide rail 6 plays spacing and the effect of direction in to lift crossbeam 8 lift process, be provided with supporting box 16 between the upper end of supporting cylinder 1 and back timber 12, this supporting box 16 and the inside hollow structure intercommunication of supporting cylinder 1, the left and right sides of back timber 12 is provided with support 13, be provided with leading wheel 14 on the support 13, the inside of supporting cylinder 1 is provided with balancing weight 65, be connected with wire rope 15 on the balancing weight 65, leading wheel 14 and lift crossbeam 8 fixed connection are walked around to the other end of wire rope 15, provide the pulling force for the subassembly on lift crossbeam 8 through balancing weight 65, play the effect of balancing weight.

The bottom fixing assembly 3 comprises a bottom plate 58, a supporting ring 59, a supporting block 61 and a pressing plate 63, wherein the supporting block 61 is fixedly arranged along the circumferential direction of the bottom plate 58, the supporting ring 59 is placed on the supporting block 61, the inner end of the pressing plate 63 is arranged into a shape corresponding to the outer surface of a workpiece, for example, a cylinder sleeve is polished, the inner end of the pressing plate 63 is arranged into a cambered structure corresponding to the cylinder sleeve, one end of the pressing plate 63 is pressed on the supporting ring 59, a cushion block 62 is arranged between the other end of the pressing plate 63 and the supporting block 61, a T-shaped groove 66 is arranged on the supporting block 61, a bolt hole 57 is arranged on the pressing plate 63, a T-shaped bolt 64 is arranged in the T-shaped groove 66, the T-shaped bolt 64 is fastened with the bolt hole 57 through a nut, an annular groove 60 is arranged on the upper surface of the supporting ring 59, the annular groove 60 is used for placing the cylinder sleeve, the inner end of the pressing plate 63 is abutted against the outer side surface of the lower end of the cylinder sleeve, then the position of the pressing plate 63 is fixed through the T-shaped bolt 64, thereby realizing the fixing effect on the lower end of the cylinder sleeve, and when the adjustable polishing head assembly 4 vertically faces downwards, the same straight line as the center of the supporting ring 59.

When in use: the cylinder sleeve is hung above the bottom fixing component 3 through a hoisting device, the lower end of the cylinder sleeve is enabled to fall on the annular groove 60, then the inner end of the pressing plate 63 abuts against the outer surface of the cylinder sleeve, then the pressing plate 63 is fixed through a T-shaped bolt 64, fixing of the lower end of the cylinder sleeve is completed, the oil cylinder 11 drives the lifting beam 8 to move downwards, the lower portion of the adjustable polishing head component 4 stretches into the cylinder sleeve, the transmission pin shaft 25 is pulled out, the transmission ring 27 is separated from the convex ring 23, the rotation of the speed reducing motor 10 drives the polishing lead screw 26 to rotate through the rotary rod 5, the speed reducing motor 10 is controlled to rotate slowly, the polishing lead screw 26 drives the upper adjusting conical sleeve 22 and the lower adjusting conical sleeve 35 to move, the polishing oilstone 21 is pushed to move outwards through the radial adjusting seat 71, the polishing oilstone 21 abuts against the inner wall of the cylinder sleeve, the rotating angle can be clearly known through the indicating needle 29, the moving distance of the oilstone fixing mechanism can be known through judging the rotating distance, when the rotating angle, judgment can be sequentially carried out, the shaft hole 28 and the hole of the hole on the transmission of the power of the convex ring 23 is realized, the polishing force is improved, the inner wall of the polishing cylinder sleeve after the polishing head is finished, the polishing motor 10, the number is provided for quick polishing of the adjustable polishing head component 4, and the adjustable polishing head is provided for polishing by the adjustable polishing pin shaft pin 21.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a cylinder liner inner wall equipment of polishing, includes lift crossbeam (8), rotary rod (5), elastic connection mechanism (18) and adjustable polishing head subassembly (4), its characterized in that: the adjustable polishing head assembly (4) comprises a polishing lead screw (26), an upper polishing disc (30), a lower polishing disc (34), an upper adjusting conical sleeve (22), a lower adjusting conical sleeve (35), a radial adjusting seat (71) and an oilstone fixing mechanism, the upper polishing disc (30) and the lower polishing disc (34) are fixedly connected together through a fastening rod (41), the lower end of the polishing lead screw (26) penetrates through the upper polishing disc (30) to the lower side of the lower polishing disc (34), a forward thread (31) and a reverse thread (33) are arranged on the lower portion of the polishing lead screw (26), the upper adjusting conical sleeve (22) is connected with the forward thread (31), the lower adjusting conical sleeve (35) is connected with the reverse thread (33), a guide sliding rod (43) is arranged between the upper polishing disc (30) and the lower polishing disc (34), the guide sliding rod (43) sequentially penetrates through the upper adjusting conical sleeve (22) and the lower adjusting conical sleeve (35), the lower surface of the upper polishing disc (30) and the lower polishing disc (34) are respectively provided with an upper adjusting sliding chute (42) and a lower adjusting sliding chute (71), a polishing buffer gap (68) is reserved between the outer side face of the radial adjusting seat (71) and the oilstone fixing mechanism, an elastic piece is arranged in the polishing buffer gap (68), a speed reducing motor (10) is fixed on the lifting cross beam (8), an output shaft of the speed reducing motor (10) is movably connected with a rotating rod (5) through an elastic connecting mechanism (18), and the lower end of the rotating rod (5) is movably connected with the upper end of a polishing screw rod (26).

2. The cylinder liner inner wall grinding device as claimed in claim 1, wherein: the elastic connection mechanism (18) comprises a connection sleeve (44) and a connection head (45), a buffer sliding groove (51) is formed in the inner wall of the connection sleeve (44) in the circumferential direction, the lower end of the buffer sliding groove (51) does not penetrate through the connection sleeve (44), a sliding connection bump (53) is arranged at the upper end of the connection head (45) in the circumferential direction, the sliding connection bump (53) is in sliding connection with the buffer sliding groove (51), an upper guide seat (50) is fixed at the upper end of the connection sleeve (44), a vertical buffer spring (52) is arranged between the upper end of the connection head (45) and the upper guide seat (50), a lower guide seat (46) is fixedly connected to the lower end of the connection head (45), a guide pillar (47) is arranged at the outer edge of the upper surface of the lower guide seat (46), a guide sleeve (48) is arranged on the upper guide seat (50), the upper end of the guide pillar (47) penetrates above the guide sleeve (48), a blocking head (49) is fixed to the upper end of the upper guide pillar (47), an output shaft of the speed reducing motor (10) is fixedly connected with the upper guide seat (50), and the lower guide seat (46) is movably connected with the rotary rod (5).

3. The cylinder liner inner wall grinding device as claimed in claim 1, wherein: the upper end and the lower extreme of rotary rod (5) are provided with movable connection subassembly respectively, and movable connection subassembly includes activity joint I (54), activity joint II (55) and activity joint III (56), and activity joint I (54) are connected through the pin rotation with activity joint II (55), and activity joint II (55) are connected through pin activity joint III (56), and the upper and lower both ends of activity joint II (55) rotate opposite direction.

4. The cylinder liner inner wall grinding device as claimed in claim 1, wherein: a bearing (40) is arranged between the polishing screw rod (26) and the polishing upper disc (30), a baffle (67) is arranged at the lower end of the polishing screw rod (26), a thrust bearing (36) is arranged between the baffle (67) and the polishing lower disc (34), and a power transmission mechanism is arranged above the polishing upper disc (30).

5. The equipment of claim 4, characterized in that: power transmission mechanism includes transmission ring (27), transmission ring (27) are fixed on the upper portion of the lead screw (26) of polishing, transmission ring (27) are provided with round pin shaft hole (28) along the circumferencial direction, round pin shaft hole (28) set up to six, the last fixed surface who polishes disc (30) has bulge loop (23), be provided with the hole that corresponds with round pin shaft hole (28) on bulge loop (23), the upper surface edge of bulge loop (23) is provided with scale ring (24), the side of transmission ring (27) is provided with pointer (29) that correspond with scale ring (24), round pin shaft hole (28) are passed through transmission round pin axle (25) with the hole on bulge loop (23) and are connected.

6. The equipment of claim 4, characterized in that: the middle of the forward thread (31) and the reverse thread (33) on the polishing screw rod (26) is provided with a fixed steel sleeve (32), the outer side surface of the fixed steel sleeve (32) is welded with a spring sleeve (37), a return spring (20) is fixed in the spring sleeve (37), the middle of the inner side surface of the radial adjusting seat (71) is a vertical surface (39), the upper side and the lower side of the vertical surface (39) are respectively provided with an inclined surface (38), the inclined surface (38) is respectively attached to an upper adjusting conical sleeve (22) and a lower adjusting conical sleeve (35), and the other end of the return spring (20) is fixedly connected with the vertical surface (39).

7. The equipment of claim 1, characterized in that: oilstone fixed establishment is including polishing oilstone (21) and oilstone fixing base (19), the upper end and the lower extreme of oilstone fixing base (19) set up respectively in radial spout (42), polish on the groove of oilstone fixing base (19) is installed to oilstone (21), and through screw fixed connection, it sets up between oilstone fixing base (19) and radial regulation seat (71) to polish buffering clearance (68), the lateral surface upper portion and the lower part of radial regulation seat (71) are provided with dashpot (70) respectively, the elastic component is fixed between dashpot (70) bottom and oilstone fixing base (19), the elastic component is spring or rubber post, the rubber post is the drum-shaped structure, and the both ends of rubber post are pre-buried to have the screw rod that is used for fixed connection.

8. The cylinder liner inner wall grinding device as claimed in claim 1, wherein: a top beam (12) is arranged above the lifting cross beam (8), an oil cylinder (11) is arranged in the middle of the top surface of the top beam (12), and the telescopic end of the oil cylinder (11) penetrates below the top beam (12) and is fixedly connected with a connecting frame (17) on the lifting cross beam (8).

9. The equipment of claim 8, characterized in that: the two sides of a lifting cross beam (8) are respectively provided with a supporting cylinder (1), the lower end of the supporting cylinder (1) is fixed on a prefabricated foundation (2), a sliding rail (6) is arranged on the corresponding inner side surface of the supporting cylinder (1), welding blocks (7) which are distributed at equal intervals are arranged between the sliding rail (6) and the supporting cylinder (1), sliding blocks (9) are arranged at two ends of the lifting cross beam (8), the sliding blocks (9) are connected with the sliding rail (6) in a sliding mode, a supporting box body (16) is arranged between the upper end of the supporting cylinder (1) and a top beam (12), the supporting box body (16) is communicated with an inner hollow structure of the supporting cylinder (1), supports (13) are arranged on the left side and the right side of the top beam (12), guide wheels (14) are arranged on the supports (13), a balancing weight (65) is arranged inside the supporting cylinder (1), steel wire ropes (15) are connected onto the balancing weight (65), and the other ends of the steel wire ropes (15) are wound around the guide wheels (14) and fixedly connected with the lifting cross beam (8).

10. The equipment of claim 1, characterized in that: the bottom fixing assembly (3) is further included, the bottom fixing assembly (3) comprises a bottom plate (58), a supporting ring (59), a supporting block (61) and a pressing plate (63), the supporting block (61) is fixedly arranged along the circumferential direction of the bottom plate (58), the supporting ring (59) is placed on the supporting block (61), one end of the pressing plate (63) is pressed on the supporting ring (59), a cushion block (62) is arranged between the other end of the pressing plate (63) and the supporting block (61), a T-shaped groove (66) is formed in the supporting block (61), a bolt hole (57) is formed in the pressing plate (63), a T-shaped bolt (64) is arranged in the T-shaped groove (66), the T-shaped bolt (64) and the bolt hole (57) are fastened through a nut, an annular groove (60) is formed in the upper surface of the supporting ring (59), and the annular groove (60) is used for placing a cylinder sleeve.