CN213580527U

CN213580527U - Surface wear resistance testing device for ductile cast iron bearing bush

Info

Publication number: CN213580527U
Application number: CN202022511429.0U
Authority: CN
Inventors: 齐敬轩
Original assignee: Tianjin Dewei Metal Surface Treatment Co ltd
Current assignee: Tianjin Dewei Metal Surface Treatment Co ltd
Priority date: 2020-11-04
Filing date: 2020-11-04
Publication date: 2021-06-29
Anticipated expiration: 2030-11-04

Abstract

The utility model relates to a nodular cast iron axle bush surface wear resistance testing arrangement. Comprises a base plate, a bearing bush fixing mechanism is arranged on the base plate, the bearing bush fixing mechanism comprises a lower fixing frame fixedly connected with the base plate, the upper surface of the lower fixing frame is provided with a plurality of lower bearing bracket brackets with semi-circular arc surfaces, an upper fixing frame is arranged above the lower fixing frame, the lower surface of the upper fixing frame is provided with a plurality of upper bearing bush brackets with semi-arc surfaces, an oil passage is arranged in the upper bearing bush brackets, an oil inlet hole communicated with the oil passage is arranged on the inner and outer surfaces of the upper bearing bush bracket, a driving cylinder is arranged at the outer end of the lower bearing bush bracket, a cylinder barrel of the driving cylinder is fixedly connected with the base plate, a cylinder rod is fixedly connected with the lower bearing bush bracket, the outer end of the lower bearing bush bracket is fixedly provided with a limit rail, the upper bearing bush bracket is connected with the limit rail of the lower bearing bush bracket in a sliding way, the upper part of the upper fixing frame is provided with a lifting cylinder, a cylinder rod of the lifting cylinder is fixedly connected with the upper fixing frame, a cylinder barrel is fixedly connected with the base plate, and the device also comprises a bearing bush testing mechanism. The utility model discloses can realize the test of many sizes axle bush.

Description

Surface wear resistance testing device for ductile cast iron bearing bush

Technical Field

The utility model relates to a surface treatment technical field especially relates to a nodular cast iron axle bush surface wear resistance testing arrangement.

Background

After the ductile iron bearing bush is prepared, a wear resistance test is carried out, and the optimal lubricating medium is selected according to the friction degree of the test shaft and the bearing bush under various lubricating media. During testing, the upper bearing bush and the lower bearing bush are aligned and fixed, then the test shaft penetrates through the bearing bushes and is filled with oil to rotate the test shaft, and then the bearing bushes are taken down to carry out wear degree test calculation. The bearing bushes to be tested generally have various sizes, and if more accurate test data is required, a plurality of sets of test equipment which are respectively matched with different bearing bushes need to be prepared, so that the occupied area of the equipment is larger and the maintenance is troublesome.

Disclosure of Invention

The utility model aims at solving the defects of the prior art and providing a device for testing the surface wear resistance of a ductile cast iron bearing bush.

The utility model discloses a realize above-mentioned purpose, adopt following technical scheme: a device for testing the surface wear resistance of a bearing bush of a ductile cast iron comprises a base plate, wherein a bearing bush fixing mechanism is arranged on the base plate and comprises a lower fixing frame fixedly connected with the base plate, a plurality of horizontal lower bearing bush brackets which are sequentially sleeved with semicircular arc surfaces and have upward arc surfaces are arranged on the upper surface of the lower fixing frame, the length of each lower bearing bush bracket positioned on the inner side is larger than that of each lower bearing bush bracket adjacent to the outer side of the lower bearing bush bracket, the adjacent lower bearing bush brackets are connected in a sliding mode and cannot be disassembled, the lower bearing bush bracket positioned on the outermost side is fixedly connected with the lower fixing frame, an upper fixing frame is arranged above the lower fixing frame, a plurality of horizontal upper bearing bush brackets which are sequentially sleeved with semicircular arc surfaces and have downward arc surfaces are arranged on the lower surface of the upper fixing frame, the length of each upper bearing bush bracket positioned on the inner side is larger than that of each upper bearing bush bracket adjacent, the upper bearing bush bracket on the outermost side is fixedly connected with an upper fixing frame, the upper bearing bush bracket and the lower bearing bush bracket correspond one by one from outside to inside and are circular in cross section after being butted, a horizontal oil passing channel is formed in the side wall of the upper bearing bush bracket, oil inlet holes communicated with the oil passing channel are formed in the inner surface and the outer surface of the upper bearing bush bracket, a horizontal driving air cylinder is arranged outside one end of the lower bearing bush bracket, a cylinder barrel of the driving air cylinder is fixedly connected with a base plate, a cylinder rod is fixedly connected with the corresponding lower bearing bush bracket, a vertical limiting rail is fixedly arranged on the outer side of one end, provided with the driving air cylinder, of the lower bearing bush bracket, the upper bearing bush bracket is in sliding connection with the corresponding limiting rail of the lower bearing bush bracket and cannot be disassembled, when one ends of the plurality of the upper bearing bush brackets, which face away from the driving air cylinder, are aligned, the oil inlet holes on the outer surface, the cylinder rod of the lifting cylinder is fixedly connected with the upper fixing frame, the cylinder barrel is fixedly connected with the base plate, and the bearing bush testing mechanism horizontally opposite to the bearing bush fixing mechanism is further included.

Preferably: the bearing bush testing mechanism comprises a plurality of horizontal testing tubes which are sequentially sleeved and arranged above a base plate, the testing tubes correspond to bearing bush brackets one by one, the length of each inner testing tube is larger than that of each adjacent outer testing tube, supports are erected at two ends of each outermost testing tube and are rotatably connected with the outermost testing tubes, driven gears are sleeved on the peripheries of the outermost testing tubes, driving gears driven by motors are arranged on the outer sides of the driven gears and are meshed with the driving gears, the inner testing tubes can be linked with the adjacent outer testing tubes, horizontal control cylinders are arranged at one ends, opposite to the bearing bush fixing mechanism, of the outermost testing tubes, cylinder barrels of the control cylinders are fixed with the base plate, piston rods of the control cylinders are connected with the end faces of the corresponding testing tubes in a sliding mode along the edge of the end face, a movable plate is arranged above the base plate, and the supports, the control cylinders, The motors of the driving gears are fixedly connected with a moving plate, a ball screw parallel to the length direction of the test tube is erected on a base plate below the moving plate, and the moving plate is fixedly connected with a nut of the ball screw and is in sliding connection with the base plate along the length direction of the ball screw.

Preferably: the inner surface of the test tube on the outer side is provided with a sliding groove along the length direction of the test tube, the outer surface of the test tube on the inner side is provided with a sliding block, and the sliding block is inserted into the sliding groove.

Preferably: and the outer surface of the upper bearing bush bracket is provided with a lantern ring, and a limit rail corresponding to the lantern ring penetrates through the lantern ring.

Preferably: the inner surfaces of the upper bearing bush bracket on the outer side and the lower bearing bush bracket on the outer side are provided with grooves with T-shaped sections along the length direction, the outer surfaces of the upper bearing bush bracket on the inner side and the lower bearing bush bracket on the inner side are fixedly provided with T-shaped moving blocks, and the moving blocks are connected with the grooves of the adjacent bearing bush brackets on the outer side in an inserting mode.

The utility model has the advantages that: the utility model discloses compare in traditional single testing arrangement, can realize the axle bush test of multiple size, both guaranteed the accuracy of test and reduced the area of equipment again, equipment maintenance is also easy relatively.

Drawings

Fig. 1 is a schematic view of the structure of the present invention.

In the figure: 1-a substrate; 2-a driven gear; 3-a drive gear; 4-a scaffold; 5-a test tube; 6-ball screw; 7-control the cylinder; 8-lower fixing frame; 9-mounting a fixed frame; 10-a lifting cylinder; 11-a support frame; 12-a drive cylinder; 13-a limit rail; 14-oil passing channel; 15-lower bearing shell carrier; 16-an upper bushing carrier; 17-oil inlet hole; 18-moving the plate.

The following detailed description will be made in conjunction with embodiments of the present invention with reference to the accompanying drawings.

Detailed Description

The invention will be further explained with reference to the following figures and examples:

as shown in figure 1, the utility model comprises a base plate 1, a bearing bush fixing mechanism is arranged on the base plate 1, the bearing bush fixing mechanism comprises a lower fixing frame 8 fixedly connected with the base plate 1, a plurality of horizontal lower bearing bush brackets 15 which are sequentially sleeved with semicircular arc surfaces and have upward arc surfaces are arranged on the upper surface of the lower fixing frame 8, the length of the lower bearing bush bracket 15 positioned at the inner side is larger than that of the lower bearing bush bracket 15 adjacent to the outer side, the adjacent lower bearing bush brackets 15 are connected in a sliding way and can not be disassembled, the lower bearing bush bracket 15 positioned at the outermost side is fixedly connected with the lower fixing frame 8, an upper fixing frame 9 is arranged above the lower fixing frame 8, a plurality of horizontal upper bearing bush brackets 16 which are sequentially sleeved with semicircular arc surfaces and have downward arc surfaces are arranged on the lower surface of the upper fixing frame 9, the length of the upper bearing bush bracket 16 positioned at the inner side is larger than that of the upper bearing bush bracket 16 adjacent to the outer side, the adjacent, an upper bearing bush bracket 16 on the outermost side is fixedly connected with an upper fixing frame 9, the upper bearing bush bracket 16 and a lower bearing bush bracket 15 correspond one by one from outside to inside and are circular in cross section after butt joint, a horizontal oil passage 14 is formed in the side wall of the upper bearing bush bracket 16, oil inlet holes 17 communicated with the oil passage 14 are formed in the inner surface and the outer surface of the upper bearing bush bracket 16, a horizontal driving air cylinder 12 is arranged outside one end of the lower bearing bush bracket 15, a cylinder barrel of the driving air cylinder 12 is fixedly connected with a base plate 1, a cylinder rod is fixedly connected with the corresponding lower bearing bush bracket 15, a vertical limiting rail 13 is fixedly arranged on the outer side of one end, provided with the driving air cylinder 12, of the lower bearing bush bracket 15, the upper bearing bush bracket 16 is in sliding connection with the limiting rail 13 of the corresponding lower bearing bush bracket 15 and cannot be detached, when one ends of the upper bearing bush brackets 16, which face away from the driving air cylinders 12, are aligned, the oil inlet holes 17, the device comprises an upper fixing frame 9, a vertical lifting cylinder 10 arranged above the upper fixing frame 9, a support frame 11 arranged on a base plate 1, a cylinder rod of the lifting cylinder 10 fixedly connected with the upper fixing frame 9, a cylinder barrel fixedly connected with the support frame 11, and a bearing bush testing mechanism horizontally aligned with a bearing bush fixing mechanism.

The bearing bush testing mechanism comprises a plurality of horizontal testing tubes 5 which are sequentially sleeved and arranged above a base plate 1, the testing tubes 5 correspond to bearing bush brackets one by one, the length of the testing tube 5 at the inner side is larger than that of the testing tube 5 at the adjacent outer side, two ends of the testing tube 5 at the outermost side are provided with brackets 4, the brackets 4 are rotatably connected with the testing tube 5 at the outermost side, the periphery of the testing tube 5 at the outermost side is sleeved with a driven gear 2, the outer side of the driven gear 2 is provided with a driving gear 3 driven by a motor, the driven gear 2 is meshed with the driving gear 3, the testing tube 5 at the inner side can be linked with the testing tube 5 adjacent to the outer side, one end of the testing tube 5 at the non-outermost side, which is back to the bearing bush fixing mechanism, is provided with a horizontal control cylinder 7, the cylinder barrel of the control cylinder 7 is fixed with the base plate 1, and the piston rod, a moving plate 18 is arranged above a base plate 1, a bracket 4, a control cylinder 7 and a motor of a driving gear 3 are fixedly connected with the moving plate 18, a ball screw 6 parallel to the length direction of a test tube 5 is erected on the base plate 1 below the moving plate 18, and the moving plate 18 is fixedly connected with a nut of the ball screw 6 and is connected with the base plate 1 in a sliding mode along the length direction of the ball screw 6.

The utility model adopts the mode of sleeving a plurality of bearing bush brackets and a plurality of test tubes 5 to enlarge the range of testing the size of the bearing bush of each device, when in use, a group of bearing bush brackets matched with the size of the bearing bush is vacated by drawing out or pushing in a group of corresponding upper bearing bush brackets 16 and lower bearing bush brackets 15 through the driving cylinder 12, the upper bearing bush brackets 16 and the lower bearing bush brackets 15 can move horizontally together due to the existence of the limit rails 13, the upper fixing frame 9 drives the upper bearing bush brackets 16 to rise (along the limit rails 13), the upper and the lower bearing bushes are aligned and placed in the bearing bush brackets and are clamped by the downward movement of the upper fixing frame 9, when the bearing bushes are placed, the oil holes on the bearing bushes need to be right aligned with the oil inlet holes 17 on the, and then the test tube 5 matched with the bearing bush is pushed out by the control cylinder 7, and is driven by the ball screw 6 to be pushed towards the bearing bush fixing mechanism and inserted into the bearing bush for oil passing test.

In this embodiment, the related sliding connection structure is specifically as follows, a sliding groove is formed in the inner surface of the test tube 5 on the outer side along the length direction of the inner surface, a sliding block is arranged on the outer surface of the test tube 5 on the inner side, and the sliding block is inserted into the sliding groove. The outer surface of the upper bearing shell bracket 16 is provided with a collar, and the limit rail 13 corresponding to the collar penetrates through the collar. Grooves with T-shaped sections are formed in the inner surfaces of the upper bearing bush bracket 16 on the outer side and the lower bearing bush bracket 15 on the outer side along the length direction of the grooves, T-shaped moving blocks are fixedly arranged on the outer surfaces of the upper bearing bush bracket 16 on the inner side and the lower bearing bush bracket 15 on the inner side, and the moving blocks are connected with the grooves of the adjacent bearing bush brackets on the outer sides in an inserting mode.

The present invention has been described above with reference to the accompanying drawings, and it is obvious that the present invention is not limited by the above embodiments, and various improvements made by the method concept and technical solution of the present invention or directly applied to other occasions without improvement are all within the protection scope of the present invention.

Claims

1. The utility model provides a wear-resisting testing arrangement in nodular cast iron axle bush surface which characterized in that: comprises a base plate (1), a bearing bush fixing mechanism is arranged on the base plate (1), the bearing bush fixing mechanism comprises a lower fixing frame (8) fixedly connected with the base plate (1), a plurality of horizontal lower bearing bush brackets (15) which are sequentially sleeved with semicircular arc surfaces and have upward arc surfaces are arranged on the upper surface of the lower fixing frame (8), the length of the lower bearing bush bracket (15) positioned on the inner side is greater than that of the lower bearing bush bracket (15) adjacent to the outer side of the lower bearing bush bracket, the adjacent lower bearing bush brackets (15) are connected in a sliding manner and cannot be disassembled, the lower bearing bush bracket (15) positioned on the outermost side is fixedly connected with the lower fixing frame (8), an upper fixing frame (9) is arranged above the lower fixing frame (8), a plurality of horizontal upper bearing bush brackets (16) which are sequentially sleeved with semicircular arc surfaces and have downward arc surfaces are arranged on the lower surface of the upper fixing frame (9), the length of the upper bearing bush bracket (16) positioned on the inner side is greater, adjacent upper bearing bush brackets (16) are connected in a sliding mode and cannot be detached, the upper bearing bush bracket (16) on the outermost side is fixedly connected with an upper fixing frame (9), the upper bearing bush brackets (16) correspond to lower bearing bush brackets (15) from outside to inside in a one-to-one mode and are in a circular cross section after being butted, a horizontal oil passing channel (14) is formed in the inner portion of the side wall of each upper bearing bush bracket (16), oil inlet holes (17) communicated with the oil passing channels (14) are formed in the inner surface and the outer surface of each upper bearing bush bracket (16), a horizontal driving cylinder (12) is arranged on the outer portion of one end of each lower bearing bush bracket (15), a cylinder barrel of each driving cylinder (12) is fixedly connected with a base plate (1), a cylinder rod is fixedly connected with the corresponding lower bearing bush bracket (15), a vertical limiting rail (13) is fixedly arranged on the outer side of one end, provided with the driving cylinder (12), each upper bearing bush bracket (16) is connected with the corresponding limiting rail (13) of each lower bearing, when one end of each upper bearing bush bracket (16) back to the driving cylinder (12) is aligned, an oil inlet (17) on the outer surface of each upper bearing bush bracket (16) is not intersected with the adjacent upper bearing bush bracket (16) on the outer side of the upper bearing bush bracket, a vertical lifting cylinder (10) is arranged above the upper fixing frame (9), a cylinder rod of the lifting cylinder (10) is fixedly connected with the upper fixing frame (9), a cylinder barrel is fixedly connected with the substrate (1), and the bearing bush testing mechanism is horizontally aligned with the bearing bush fixing mechanism.

2. The device for testing the surface wear resistance of the ductile iron bearing shell according to claim 1, wherein: the bearing bush testing mechanism comprises a plurality of horizontal testing tubes (5) which are sequentially sleeved and arranged above a base plate (1), the testing tubes (5) correspond to bearing bush brackets one by one, the length of the inner testing tube (5) is larger than that of the adjacent outer testing tube (5), supports (4) are erected at two ends of the outermost testing tube (5), the supports (4) are rotatably connected with the outermost testing tube (5), a driven gear (2) is sleeved on the periphery of the outermost testing tube (5), a driving gear (3) driven by a motor is arranged on the outer side of the driven gear (2), the driven gear (2) is meshed with the driving gear (3), the inner testing tube (5) can be linked with the adjacent outer testing tube (5), a horizontal control cylinder (7) is arranged at one end of the non-outermost testing tube (5) opposite to the bearing bush fixing mechanism, the cylinder barrel of the control cylinder (7) is fixed with the base plate (1), the piston rod is connected with the end face of the corresponding test tube (5) in a sliding mode along the edge of the end face, the moving plate (18) is arranged above the base plate (1), the support (4), the control cylinder (7) and the motor of the driving gear (3) are fixedly connected with the moving plate (18), the ball screw (6) parallel to the length direction of the test tube (5) is erected on the base plate (1) below the moving plate (18), and the moving plate (18) is fixedly connected with the nut of the ball screw (6) and is connected with the base plate (1) in a sliding mode along the length direction of the ball screw (6).

3. The device for testing the surface wear resistance of the ductile iron bearing shell according to claim 2, wherein: the inner surface of the test tube (5) at the outer side is provided with a sliding groove along the length direction, the outer surface of the test tube (5) at the inner side is provided with a sliding block, and the sliding block is inserted into the sliding groove.

4. The device for testing the surface wear resistance of the ductile iron bearing shell according to claim 1, wherein: the outer surface of the upper bearing bush bracket (16) is provided with a lantern ring, and a limit rail (13) corresponding to the upper bearing bush bracket passes through the lantern ring.

5. The device for testing the surface wear resistance of the ductile iron bearing shell according to claim 1, wherein: the inner surfaces of the upper bearing bush bracket (16) on the outer side and the lower bearing bush bracket (15) on the outer side are provided with grooves with T-shaped sections along the length direction, T-shaped moving blocks are fixedly arranged on the outer surfaces of the upper bearing bush bracket (16) on the inner side and the lower bearing bush bracket (15) on the inner side, and the moving blocks are connected with the grooves of the adjacent bearing bush brackets on the outer side in an inserting mode.