Installation of intermediate bearing of crankshaft

FIELD: engines and pumps.

SUBSTANCE: invention is related to intermediate bearings of engines and more precisely to devices and methods for installation of intermediate bearing on crankshaft. Method consists in the fact that intermediate bearing (162) is placed on central hub (160), and further intermediate bearing (162) is pressed between central hub (160) of crankshaft and central partition (116, 118) of engine tray. To install intermediate bearing (162) in tray (110) of engine and to connect it to central partition (116, 118), device is used, which represents tool (200) comprising two halves (210, 230).

EFFECT: creation of simplified method for installation of intermediate bearing, in which: number of elements required for installation is reduced, installation flexibility and adaptability are provided.

44 cl, 5 dwg

 

The technical field to which the invention relates.

The present invention relates to intermediate bearings of the engines, and more specifically to devices and methods for installing the intermediate bearing.

The level of technology

Two cylinder air compressors, used in heavy-duty pneumatic brake systems generally do not require the use of an intermediate bearing/bushing. However, this bearing/bushing can be used to limit the mechanical stresses of air compressor acceptable levels or below. Therefore, the intermediate bearing/bushing may be necessary to regulate the size and technical characteristics of the system. When using the intermediate bearing/bushing to install commonly used split sleeve and/or housing.

In addition, these bearings/bushings and/or housing usually includes a special configuration that require precise adjustment and placement of these elements in the crankcase. These methods may be preferable to secure the intermediate bearing/bushing and, accordingly, the crankshaft in the crankcase, however, such methods do not have the flexibility and adaptability.

There is a need for a simplified method of installing the intermediate bearing/bushing on to lenity shaft. It would also be preferable if such a method include a tool that provides a simplified installation of the bearing/bushing. In addition, it would be preferable if this method limited the number of items required for installation intermediate bearing/bushing. It would also be preferable if such a method provides the ability to install the bearing/bushing in the crankcase of the engine.

The invention

These goals are achieved by using the device and method of mounting the intermediate bearing by pressing, the intermediate bearing between the Central hub of the crankshaft and the Central wall of the crankcase or provide a bearing support, which is installed in the crankcase and connected to the Central partition.

A variant of the present invention is to provide a tool for intermediate bearing on the crankshaft, containing the first end and the second end, the first end is engaged with an intermediate bearing, located around the Central hub of the crankshaft. This tool fixes the intermediate bearing on the Central hub, when the intermediate bearing is installed between the Central hub and the Central wall of the crankcase. The second con is C is arranged to mesh with a part of the crankshaft, to keep the first end of the supporting position of the intermediate bearing.

In accordance with another variant of the present invention provides a cavity between the first and second end, and a portion of the crankshaft is located in this cavity.

In accordance with another variant of the tool contains a transitional region between the first and second end, which allows the second end to maintain the first end and, therefore, the intermediate bearing.

In accordance with another variant of the present invention, the first end includes a first axial center, the second end includes a second axial center which is offset relative to the first axial center, and the transition region includes an axial center which is offset relative to the first or second axial centers.

In accordance with another alternative tool contains two halves, which are shell, which are connected to the conclusion of the crankshaft in the cavity.

Another option is to create a method of mounting an intermediate bearing, comprising the steps are put on the intermediate bearing with the near end and the far end of the Central hub of the crankshaft; add an element to the middle end of the intermediate bearing to prevent displacement of the intermediate Podshipnik direction of the near end; promote the crankshaft, located in the crankcase of the engine, towards the far end; and pressed intermediate bearing so that the intermediate bearing was located between the Central hub and the Central wall of the crankcase. The specified element may be the above-described tool or protrusion formed on the near end of the Central hub, which comprises an outer circumference that is larger than the outer circumference of the working surface of the bearing Central hub.

Another option of the present invention is to provide a crankshaft with a Central hub containing the working surface of the intermediate bearing and the lip. The working surface of the intermediate bearing includes an outer diameter that matches the inner diameter of the intermediate bearing. The protrusion includes an outer diameter greater than the outer diameter of the working surface of the intermediate bearing.

Another option of the present invention is to provide a Central support for the intermediate bearing of the crankshaft with the base support and the upper leg. The base and the upper support connected to the Central partition, while the base support includes an inclined surface which corresponds to and is in contact with the inclined surface of the Central partition.

In accordance with another variant of the present invention the bolt connects the Central bearing to the crankshaft by inserting the bolt into the hole in the crankcase, which is located on the outer surface of the crankcase, and through the crankcase into the hole in the base support.

Other variants of the present invention and its distinguishing features and advantages will become clearer upon consideration of the following drawings and accompanying detailed description.

Brief description of drawings

Figure 1 is a side view in cross section of the compressor tool according to the present invention, located on the crankshaft.

2 shows a side view in cross section of the engine with the tool according to the present invention, located on the crankshaft, for installation and removal.

Figure 3 is a perspective view of the tool according to the present invention, in disassembled form with intermediate bearing/bushing.

Figure 4 is a side view in cross section of the engine crankshaft, which includes a ledge on the Central hub.

Figure 5 is a side view in cross section of the engine with a Central pillar for the intermediate bearing.

Detailed description of the invention

In figure 1, 2, 4 and 5 is provided multicylinder engine 100, containing the crankcase 110 of the engine and the crankshaft 150. The crankcase 110 engine includes a shaft hole 120 through which the crank shaft 150 is inserted and housed in the casing 110 of the engine. The crankcase 110 engine further comprises two adjacent blocks 112, 114 of the cylinder located at one side of a common axis of the crankcase 110, and the holes 120 of the shaft. Blocks 112, 116 of the cylinder divided by a Central partition 116, 118 and communicated with the hole 120 of the shaft. The area of the inner surface of the Central partition 116, 118 forms a hole 122 of the partition in the hole 120 of the shaft. The crankshaft 150, installed in the casing 110 of the motor comprises a Central hub 160, located in the area of the holes 122 of the partition. Between the Central hub 160 and the area of the inner surface of the Central partition 116, 118 is located intermediate the bearing/bushing 162. Figure 1 shows that the intermediate bearing/bushing 162 includes an inner diameter that is approximately equal to the outer diameter of the Central hub 160. Intermediate bearing/bushing 162 is made with the possibility of putting on and removal from the Central hub 160 in the direction of the near end and the far end of the crankshaft 150. The diameter or the length of the outer circumference of the Central sleeve 162 is approximately equal to or slightly larger than the diameter or the length of the district the tee area of the inner surface of the Central partition 116, 118. The ratio of the sizes of the intermediate bearing/bushing 162 and the Central partition 116, 118 should be such that the introduction of the intermediate bearing/bushing 162 in this area was provided by securing the intermediate bearing/bushing 162 in the Central partition 116, 118. Essentially, preferably, if the bearing/bushing 162 exerts an external force on the Central partition 116, 118. This ensures that the bearing/bushing 162 will not be moved from his/her position. Other elements of the crankshaft 150, located in the crankcase 110, are thrust ring 158, the far and middle balances 152, 154, far and near indigenous cervical 164, 166 of the crankshaft, bearings/bushings 168, 170 and ball bearing 156.

Next, with reference to figures 1 to 3 will be described installation of the crankshaft 150 with intermediate bearing/bushing 162. Before placing the crankshaft 150 in the hole 120 of the shaft intermediate the bearing/bushing 162 is put on the Central hub 160, snap ring 158 is disposed on the far end of the crankshaft 150, and the ball bearing 156 zapressovyvajutsja in the middle end of the crankshaft 150. The far end of the crankshaft 150 is inserted into the near end of the hole 120 of the shaft. The crankshaft 150 is pushed through the hole 120 of the shaft in the direction shown in figure 2 by the arrow 172, until, by whom and intermediate bearing/bushing 162 will not come into contact with the Central partition 116, 118.

The outer circumference of the intermediate bearing/sleeve 162 has a size greater than the circumference of the inner surface of the Central partition 116, 118. Therefore, if you continue to make an effort to the crankshaft 150, to further promote the shaft 150 in the hole for the shaft 120, the Central partition 116, 118 will cause jumping of the intermediate bearing/sleeve 162 with a Central hub 160. Thus, the intermediate bearing/bushing 162 will not be located between the Central hub 160 and the Central partition 116, 118.

In order to secure the intermediate bearing/bushing 162 between the Central hub 160 and the Central partition 116, 118, the bearing/bushing 162 must be pressed between the two elements. To install the bearing/bushing 162 between these two elements is used, the tool 200. The tool 200 includes the first half 210 and the second half 230, which are multidisciplinary shell and provide a rigid structure that resists the displacement of the intermediate bearing/bushing 162. Each shell includes an end 212, 232 for bearing/bushing, the end 214, 234 for the crankshaft and a transitional region 216, 236. The first half 210 and the second half 230 of the tool 200 is placed in the crankcase 110 of the engine through the cylinder 114. The first half 210 is aligned between the bearing/bushing 162 and the middle counterweight 154 along the upper part of the crankshaft 150 from the Central hub 160 via a radical neck 166 of the crankshaft and to the counterweight 154. The second half 230 is aligned between the bearing/bushing 162 and the middle counterweight 154 along the bottom of the same area. Then both halves 210, 230 are combined and form the tool 200. The tool 200 is a versatile shell that fits the contour of the part of the crankshaft 150, which runs from the Central hub 160 via a radical neck crankshaft 166 and to the counterweight 154. To the crankshaft 150 included in the internal cavity of the tool 200, the inner circumference of the tool 200 should be greater than the outer circumferences of the crankshaft 150 from the Central hub 160 to the root of the neck 166 of the crankshaft.

The end 212, 232 for bearing/bushing includes an axial center, which corresponds to the axial center of the intermediate bearing/bushing 162. In addition, the inner and outer circumference end 212, 232 for bearing/bushing correspond to the inner and outer diameters of the intermediate bearing/bushing 162. Essentially, the far surface 218, 238 end 212, 232 combined and may come into contact with the bearing/bushing 162. Preferably, if the outer and inner surface of the end 212, 232 perpendicular to the contact surface of the bearing/bushing 162.

Middle counterweight 154 includes an outer surface of the protrusion A, which is connected with the neck 166. At least, frequent the outer diameter or circumference of the outer surface of the protrusion A more of the outer diameter or circumference of the neck 166. The end 214, 234 for the crankshaft includes an axial center, which corresponds to the axial center of the outer surface of the protrusion A. The inner and outer surface of the end 214, 234 for the crankshaft corresponding to a part of the outer surface of the protrusion A, which is outside of the neck 166. Essentially, the near surface 220, 240 end 214, 234 for the crankshaft combined and may come into contact with the middle counterweight 154. Preferably, if the inner and outer surface of the end 214, 234 for the crankshaft is perpendicular to the outer surface of the protrusion A.

Figure 1-3 shows that the axial centers of the end 212, 232 for bearing/bushing and end 214, 234 crankshaft offset relative to each other, i.e. the axial centers lie in different planes. In the result between the two ends is formed transition region 216, 236. The transition region 216, 236 may be an inclined transition from end 212, 232 for bearing/bushing to the end 214, 234 to the crankshaft or may be intermediate the axial center between the two ends. Figure 2 shows that the first half 210 has a single-stage profile and the second half of the 230 has a three-step profile. Such a profile is selected based on the need of distribution of the reaction forces produced by pressing elapsed is knogo bearing/bushing 162.

Tool 200 that is installed between the intermediate bearing/bushing 162 and counterweight 154, an intermediate bearing/bushing 162 is attached to the Central hub 160 from the effects of our efforts in the direction of installation 172. Due to the application of force in the direction 172 prevents jumping from a Central hub 160 of the intermediate bearing/bushing 162, when the bearing/bushing 162 is in contact with the Central partition 116, 118. With continued application of force in the direction 172 of the bearing/bushing 162 zapressovyvajutsja between the Central partition 116, 118 and the Central hub 160. The force is continuously applied to the crankshaft 150 up until the snap ring 158 is not included in simultaneous contact with the crankcase 110 engine and far counterweight 152. When the intermediate bearing/bushing 162 is properly mounted, the first half 210 and the second half 220 are separated and removed through the cylinder 114.

Figure 2 shows also that the tool 200 may be used to remove the intermediate bearing/bushing 162. For this first half 210 and the second half 230 is inserted through the cylinder 112 and aligned between the bearing/bushing 162 and far counterweight 152 along the top and bottom parts of the crankshaft 150 from the Central hub 160 via a radical neck 164 crankshaft VA is a and to the counterweight 152. The two halves are combined and combined with the bearing/bushing 162 and counterweight 152 similarly as described above for device installation. The force is applied in the direction opposite to the direction 172. The tool 200 brings the force to the bearing/bushing 162, ensuring to remove it from the area between the partition 116, 118 and the Central hub 160.

Figure 4 shows that the intermediate bearing/bushing 162 may be mounted on the Central hub 160 by using the ledge on the Central hub 160. Essentially, the Central hub 160 includes a working surface 159 of the bearing/sleeve and the protrusion 161 of the Central hub. The outer diameter of the working surface 159 of the bearing/bushing is approximately equal to the inner diameter of the intermediate bearing/bushing 162 so that the intermediate bearing/bushing 162 can be worn on the working surface 159 of the bearing/bushing from the far end of the Central hub 160. The protrusion 161 of the Central hub is located close relative to the working surface 159 of the bearing/bushing. The outer diameter of the protrusion 161 Central hub more of the outer diameter of the working surface 159 of the bearing/bushing and the inner diameter of the intermediate bearing/bushing 162. As a result, equip bearing/sleeve 162 to the far end of the Central hub 160 further offset is the bearing/bushing 162 in the direction of the near end of the Central hub is blocked by the protrusion 161.

Next, with reference to figure 4 will be considered the installation of the crankshaft 150 with intermediate bearing/bushing 162 using the protrusion 161 of the Central hub. Before placing the crankshaft 150 into the hole 120 of the shaft intermediate the bearing/bushing 162 is placed on the working surface 159 of the bearing/bushing. The crankshaft 150 through the opening 120 of the shaft moves in the direction shown in figure 2 by the arrow 172. The force continues to be applied to the crankshaft 150, when the bearing/bushing 162 is in contact with the Central partition 116, 118. The protrusion 161 Central hub prevents jumping of the bearing/sleeve 162 with a Central hub 160. This provides a bearing/bushing 162 between the Central partition 116, 118 and the Central hub 160. As described above, the force continues to be applied to the crankshaft 150 up until the snap ring 158 will not come into simultaneous contact with the crankcase 110 engine and far counterweight 152.

Intermediate the bearing can also be installed using a Central bearing 190, consisting of two parts, the Central hub 160V. The crankcase 110 engine includes a top wall 117 and the bottom wall 119. The bottom wall 119 includes a multidisciplinary installation surface of the Central support 190 in the housing 110 of the engine. Such a profile which includes a horizontal surface A, located near end of the lower partition wall 119, and an inclined surface V located at the far end of the lower partition 119. The Central support 190, consisting of two parts, includes basic support 192 and the upper support 194 and is connected with the bottom wall 119. The lower part of the base support 192 includes a horizontal surface A, which corresponds to and is in contact on the entire surface with a horizontal surface A. The lower portion also includes an inclined surface V support, which corresponds to and is in contact on the entire surface of the inclined surface V partitions. The upper part of the base support 192 covers a part of the bearing W mounted on the Central hub 160V. The remaining part of the bearing V covered by the upper leg 194. Basic bearing 192 and the upper bearing 194 are connected to each other using a connecting means such as bolts (not shown). The Central support 190 is connected with the bottom wall 119 by means of a bolt 196 passing through the bottom wall 119 in the lower part of the base support 192.

Next, with reference to figure 5 will be described installation of the crankshaft 150 with intermediate bearing/bushing W using the Central support 190. The Central bearing B is located on the outer surface of the Central hub 160V. The far end of the crankshaft is 150 is inserted into the near end of the hole 120 of the shaft. The crankshaft 150 through the opening 120 of the shaft is moving in the direction of the far end 172 until such time as the Central hub 160V will not be available through the cylinder 114. Basic bearing 192 and the upper bearing 194 is inserted into the hole 120 of the shaft through the cylinder 114. Basic bearing 192 and the upper bearing 194 are aligned with the upper and lower parts of the Central hub 160V and are connected by means of a bolt. The crankshaft 150 is pushed further into the housing 110 of the engine up until the inclined surface B support will not come into contact on the entire surface of the inclined surface V partitions, and openings on both inclined surfaces will be combined. At the end of the bolt 119 is inserted into the holes in the bottom wall 119 and the base support 192, connecting the Central support 190 to the crankshaft 110.

Although the present invention is described with reference to a particular arrangement of parts, elements and the like, they do not exhaust all possible structures or elements, and for specialists in the art it is obvious that there are many other modifications and changes.

1. Tool for intermediate bearing on the crankshaft, comprising: a first end and a second end, the first end configured to mesh with an intermediate bearing located at the center is the social hub of the crankshaft; this tool provides a consolidation of the intermediate bearing on the Central hub, when the intermediate bearing is installed between the Central hub and the Central partition of the crankshaft.

2. The tool according to claim 1, in which the second end is configured to engage with a part of the crankshaft.

3. The tool according to claim 1, additionally containing a cavity, which passes from the first end to the second end.

4. The tool according to claim 3, covering part of the crankshaft, when this part is located in its cavity.

5. The tool according to claim 1, additionally containing a transition region located between the first and second end.

6. The tool according to claim 3, in which the transition region is inclined moving from the first end to the second end.

7. The tool according to claim 3, in which the transition region is a stepped transition from the first end to the second end.

8. The tool according to claim 1, additionally containing a contour which conforms to the shape of the crankshaft in the area of main journal of the crankshaft.

9. The tool of claim 1, wherein the first end contains a distant surface, which is combined with the intermediate bearing and made with the possibility of entering into contact with the intermediate bearing.

10. The tool according to claim 9, in which the first end comprises an outer okruzhnost is, which is more than the outer circumference of the Central hub.

11. The tool according to claim 9, in which the second end includes a near-surface, which is combined with a part of the crankshaft and is made with the possibility of entering into contact with a part of the crankshaft.

12. The tool of claim 1, wherein the first end includes a first axial center.

13. The tool 12, in which the first axial center corresponds to the axial center of the intermediate bearing.

14. The tool 12, in which the second end includes a second axial center.

15. The tool 14, in which the second axial center offset from the axial center of the first end.

16. The tool 14, which additionally contains a transitional region between the first end and the second end containing the axial center of which is displaced relative to the first axial center and a second axial center.

17. The tool according to claim 1, additionally containing the first half and second half.

18. The tool 17 in which the first and second half are membranes that contain interacting surface, when forming the connection tool.

19. The tool p, in which the cavity is formed and extends from the first end to the second end when the first and second halves joined together.

20. The tool 17 in which the first half contains the con is ur which corresponds to the upper part of the crankshaft, and the second half contains a contour that corresponds to the lower part of the crankshaft.

21. The installation method of the intermediate bearing on the crankshaft, comprising: attaching an intermediate bearing with the near end and the far end of the Central hub of the crankshaft; an application to middle end of the intermediate bearing to prevent saskachewan intermediate bearing in the direction of the near end; promotion of the crankshaft, located in the crankcase of the engine, towards the far end and the injection of the intermediate bearing so that the intermediate bearing is located between the Central hub and the Central wall of the crankcase of the engine.

22. The method according to item 21, further including the promotion of the crankshaft through the hole of the crankshaft in the crankcase of the engine up until the intermediate bearing will not come into contact with the Central partition.

23. The method according to item 22, in which the item is a tool made with the possibility of introducing into the crankcase of the engine.

24. The method according to item 23, further including the introduction of the instrument containing the first end and the second end, through the cylinder crankcase of the engine.

25. The method according to paragraph 24, in which the tool further comprises PE the first half and a second half, made with the possibility of separation and education tool for the connection.

26. The method according to p. 25, further comprising mounting the tool on the crankshaft so that the first end is in contact with the intermediate bearing.

27. The method according to p in which stage of the installation tool further includes a step of fastening the second end part of the crankshaft.

28. The method according to item 27, further comprising separating the first and second halves after completion of the pressing, the intermediate bearing and the destruction of the first and second halves through the cylinder.

29. The method according to item 21, in which the element is a protrusion located on the near end of the Central hub.

30. The method according to clause 29, in which the protrusion has an outer diameter greater than the outer diameter of the working surface of the intermediate bearing of the Central hub, which is located intermediate the bearing.

31. Crankshaft, comprising: a Central hub containing the working surface of the intermediate bearing and the protrusion; and a working surface of the intermediate bearing includes an outer diameter that matches the inner diameter of the intermediate bearing; the protrusion includes an outer diameter greater than the outer diameter of the working surface of the intermediate bearing

32. The crankshaft in p, in which the protrusion is located on the near end of the Central hub.

33. The crankshaft in p, in which the outer diameter of the intermediate bearing corresponds to the inner diameter of the Central walls of the crankcase of the engine.

34. The crankshaft in p, in which the intermediate bearing is installed between the Central hub and the Central partition by pressing, the intermediate bearing between the Central hub and the Central partition.

35. The crank shaft 34, in which the protrusion prevents shifting of the intermediate bearing for the crankshaft in the direction of the near end.

36. The Central bearing intermediate bearing of a crankshaft, comprising: a base support and the upper support and the base and the upper support connected to the Central partition; basic support includes an inclined surface that corresponds to the inclined surface of the Central partition and made with the possibility of entering into contact with it.

37. Central support for p, in which the inclined surface of the Central partition provides a gradual narrowing of the size of the hole of the crankshaft in the crankcase in the direction of the far end.

38. Central support for p, optionally containing the connecting means of the base supports are reffering to is HNA support.

39. Central reliance on § 38, additionally containing the connecting means of the base support with a Central partition.

40. Central reliance on § 39, in which the connecting means is a bolt which passes through the Central partition in the base support.

41. Central support for p, in which the bolt is inserted into the hole in the crankcase, which is located on the outer surface of the crankcase, and passes through the crankcase into the hole in the base support.

42. Central support for p, in which the base support is combined with a Central partition by moving the base of support in the direction of the far end until the moving base of support does not stop the inclined surface of the base supports are in contact with the inclined surface of the Central partition.

43. Central support for p, in which the Central wall and base support contain an angled surface that is located remotely from the horizontal surface.

44. The Central support on p.43, in which the inclined and the horizontal surface of the Central partitions come in contact over the entire surface of the inclined and horizontal surfaces of the base support.



 

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1 cl, 2 dwg

FIELD: repairing equipment of shops, namely of locomotive depots of railway road transport vehicles.

SUBSTANCE: movable installation includes lifting table having lower wheeled platform and jointly mounted on it upper stand; mechanism for lifting and descending said stand; power hydraulic cylinder mounted on upper stand and communicated by means of hydraulic lines through control unit with high-pressure pump system; clamping device for mounting-dismounting bearing assemblies. High pressure pump system includes tank, pump aggregate, draining pipeline, suction pipeline connecting inlet of pump aggregate with tank. Lifting and descending mechanism is in the form of hydraulic cylinder and it is mounted on lower platform. Pump aggregate is arranged on upper lid of tank and it is in the form of displacement hydraulic pump with electric motor. Filter is mounted in suction pipeline. Control unit is in the form of body having two built-in safety valves, tap distributor and built-in non-return valve. Manometer and additional filter connected with draining pipeline and having pouring hole are connected with control unit. Hydraulic lines are in the form of flexible hoses. Installation is provided with additional power hydraulic cylinder that forms together with connected in parallel main hydraulic cylinder unit of power hydraulic cylinders. Said unit of power hydraulic cylinders is placed on supporting sheet-plate mounted on upper stand with possibility of rotation or removal from upper stand and with possibility of moving in range of length of flexible hoses. Similar cavities of hydraulic cylinders are mutually communicated. Clamping device includes movable and stationary plates mounted respectively on rods and back lids of hydraulic cylinders and designed for joining tie rods of attachment.

EFFECT: enhanced reliability, no-failure operation of installation.

10 dwg

FIELD: assembling of precise units of instruments by pressing-in with use of calibrated effort, by riveting and expanding with use of precession tool.

SUBSTANCE: press includes П-shaped housing; adjustable table mounted in struts of housing and fixed to said struts by means of pins; power hydraulic cylinder with axial motion of rod; rotation drive of precession head; pumping station of hydraulic drive unit. Rotation drive of precession head includes electric motor and belt transmission. Power hydraulic cylinder is rigidly mounted on cross piece of housing and it carries plate on end of spring-loaded rod. Said plate supports two plungers spaced in parallel relative to axis of rod and spring-loaded relative to housing. Pulleys of belt transmission of rotation drive are mounted in casing. The last is secured to plate in such a way that driven pulley is mounted on spindle coaxially relative to rod of hydraulic cylinder and driving pulley is mounted on the same axis as shaft of electric motor placed in cross piece of housing. Driving pulley and shaft of electric motor are kinematically joined by means of other shaft whose one end is mounted in shaft of electric motor and whose other end is joined by means of sliding dowel with opening of supporting axle of driving pulley. Spindle of driven pulley is joined with precession head.

EFFECT: improved design providing enhanced rigidity and working accuracy of press.

4 dwg

FIELD: mechanical assembling procedures, namely equipment for assembling aggregates of caterpillar transport vehicles, for example semiautomatic machines for assembling caterpillar tracks.

SUBSTANCE: in apparatus for assembling chain stop plate is mounted in such a way that its working surface is arranged in plane normal relative to pressing in plane. Upper non-working portion of stop plate at side of ending pressing-in cycle is inclined in horizontal plane to side from rotor type conveyer. Lower non-working portion of plate in vertical plane is inclined relative to vertical line to side from rotor type conveyer. Stop part of pusher exceeds diameter of head of pin. Rigid guides are arranged in plane parallel to pressing-in plane; said guides are in the form of roller tables with pitch between rollers of roller table less than pitch of chain links. Guides embrace upper branch of conveyer from downwards and branch of chain from upwards at least along the whole length of it. Drive unit is provided in addition with back-stroke mechanism. Splitter is in the form of plate that is jointly mounted in its mean portion along lateral sides on supporting surface in horizontal plane along motion direction of conveyer for moving pins and it forms two-arm lever. One end of said lever is spring-loaded from downwards with possibility of engaging with dents of conveyer for moving pins. Other end of said lever is Г-shaped one and it may engage by free end with pins on inclined trough. Horizontal axes of articulation joints in vertical plane are provided with holding levers rigidly joined with plate and mounted with possibility of engaging with pins on inclined trough.

EFFECT: enlarged manufacturing possibilities, enhanced operational reliability.

7 dwg

Mandrel // 2258591

FIELD: mechanical engineering.

SUBSTANCE: mandrel has guide, working part made of deformable teeth, calibration parts, and diverging groove made in the guide and working parts. The expanded end of the groove is in coincident with the origin of the guiding part. The groove that ends at the last deformable tooth of the working part has radius-shaped cross-section.

EFFECT: enhanced quality of the press joint and expanded functional capability.

2 dwg

FIELD: machine engineering, namely equipment for dismounting press-fit joints, possibly restoration of electric machines.

SUBSTANCE: apparatus includes housing with platforms for horizontal and vertical motions. Part to be dismounted is placed on horizontal motion platform and it is fed to stripping mechanism. The last is joined with vertical motion platform by means of fastening members and it is provided with adjusted grips supporting heating members with possibility of their axial movement. Heating members are in the form of nozzles for alternating feed of hot and cooled air.

EFFECT: reduced axial errors between dismounted part and stripping mechanism, lowered efforts for stripping parts.

5 cl, 5 dwg

FIELD: mechanical engineering.

SUBSTANCE: device comprises the mechanism for locking pressed parts made of an extensible sleeve. The first power hydraulic cylinder is used for moving parts and can rotate between two vertical unmovable pillars. The pillars are pivotally connected in pair with movable vertical pillars through the top and bottom horizontal clamps. The extensible spring-loaded stop with the drive and the first hydraulic cylinder are axially aligned. The first power hydraulic cylinder receives the second power hydraulic cylinder whose rod is provided with first center and spring. One end of the spring co-operates with the piston, and other end of the spring co-operates with the face of the extensible sleeve. The extensible stop receives the second center with the stack of plate springs that is coaxial to the first center. The bottom clams are provided with a lifting-rotating device.

EFFECT: reduced labor consumption for making and simplified structure.

1 cl, 2 dwg

Crank stripper // 2267397

FIELD: devices designed for simplifying procedures of assembling/disassembling units.

SUBSTANCE: crank stripper includes cross piece 1 supporting power mechanism in the form of one-way telescopic hydraulic cylinder 2 having thrust rod 3 for shaft of crank 14; mechanism for forced closing of foots having cylindrical discs 8, 9, paired plates 10 and double-arm levers 4,5. One arm is used for engaging with crank; other arm of is cone one and it may rest upon lateral surface of cylindrical disc secured to lateral side of cross piece. Double-arm lever whose arms are mutually inclined by obtuse angle is jointly mounted through paired plates in center of disc. Articulation joint of lever is mounted in edge portion of second lever arm on line of inner surface of first lever arm.

EFFECT: intensified clamping of part by foots, enhanced efficiency, lowered cost price of working operations.

2 dwg

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