A thrust washer

Abstract

The present invention relates to the technical field of thrust washers, and specifically to a thrust washer, comprising an inner ring, which is in the shape of an annular plate, the inner diameter of the inner ring is equal to the outer diameter of the spline shaft, and the outer diameter of the inner ring is not less than the outer diameter of the axial steel wire retaining ring after installation; and an outer ring, which is in the shape of an annular plate, the inner diameter of the outer ring is not less than the outer diameter of the axial steel wire retaining ring after installation, and the inner wall of the outer ring is connected to the outer wall of the inner ring; the present invention enables the outer ring to move up and down relative to the inner ring of the thrust washer through a sliding connection between the outer ring and the inner ring, greatly improving the disassembly and installation of the steel wire retaining ring for the shaft, so that the present invention has the characteristics of high efficiency, convenient operation, and economical and practical; through a lever structure, the power arm is made larger than the resistance arm to form a labor-saving lever, and the staff gives a certain force to the retaining plate through the labor-saving lever, thereby opening the steel wire retaining ring for the shaft, reducing the labor intensity of the staff in disassembling the thrust washer.

Description

Technical Field

[0001] The invention relates to the technical field of thrust washers, in particular to a thrust washer. Background Art

[0002] Thrust washers are annular plates or two semi-annular plates usually used together with radial sliding bearings to bear axial loads. They are usually used in mechanical devices such as clutch devices, transmissions, gear mechanisms or compressors to enable them to withstand axial forces and extend the service life of the mechanical devices.

[0003] Since the thrust washer is installed at the lower part of the shaft wire washer and the upper end of the thrust washer is clamped with the shaft wire retaining ring, when disassembling, the staff needs to smash the thrust washer downwards to separate it from the shaft wire retaining ring, and then remove the shaft wire retaining ring before removing the thrust washer; when installing, the thrust washer needs to be installed on the shaft first, and then the shaft wire retaining ring is installed on the shaft, and then the thrust washer is knocked upwards to make it clamped on the shaft wire retaining ring. The whole work process is cumbersome and laborious, which seriously affects work efficiency.

[0004] Although the prior art can disassemble and assemble the thrust washer, the process is very time-consuming and labor-intensive, which affects work efficiency.

[0005] In view of this, in order to overcome the above technical problems, the present invention proposes a thrust washer to solve the above technical problems. Summary of the invention

[0006] In order to make up for the deficiencies of the prior art, the present invention proposes a thrust washer. By adjusting the thrust washer, the present invention has the characteristics of high efficiency, convenient operation, economy and practicality.

[0007] The technical solution adopted by the present invention to solve the technical problem is: a thrust washer according to the present invention comprises:

[0008] Inner ring, the inner ring is an annular plate, the inner diameter of the inner ring is equal to the outer diameter of the spline shaft, and the outer diameter of the inner ring is not less than the outer diameter of the axial wire washer after installation;

[0009] An outer ring, the outer ring is an annular plate, the inner diameter of the outer ring is not less than the outer diameter of the axial wire washer after installation, and the inner wall of the outer ring is connected to the outer wall of the inner ring;

[0010] Preferably, the outer ring is slidably connected to the inner ring.

[0011] Preferably, the outer ring is threadedly connected to the inner ring.

[0012] Preferably, the inner ring and the outer ring are axially connected via a tension spring.

[0013] Preferably, an elastic element is provided on the bottom surface of the outer ring.

[0014] Preferably, the inner ring is close to the bottom surface of the inner ring and a bearing ring is provided on the outer wall of the inner ring.

[0015] Preferably, a square groove is provided on the outer wall of the inner ring, the square groove is connected to the upper end surface of the inner ring, a sliding groove is provided at the bottom of the square groove, the sliding groove is slidably connected to the No. 1 connecting rod, one end of the No. 1 connecting rod is hinged to two No. 2 connecting rods at the same time, the No. 2 connecting rod is hinged to a baffle, the bottom of the groove is rotatably connected to a lever, one end of the lever is located below the No. 1 connecting rod and is hinged to the No. 1 connecting rod.

[0016] Preferably, an arc-shaped groove is provided at the other end of the lever, a No. 3 connecting rod is fixedly connected to the inner wall of the outer ring, a pressure ball is fixedly connected to the No. 3 connecting rod, and the pressure ball is in contact with the arc-shaped groove.

[0017] Preferably, the rotation point of the lever is close to the bottom of the No. 1 connecting rod.

[0018] Preferably, a stopper is provided on the outer side of the shaft wire retaining ring and on the inner upper portion, and the stopper is used to limit the shaft wire retaining ring.

[0019] The beneficial effects of the present invention are as follows:

[0020] 1. The present invention enables the outer ring to move up and down relative to the inner ring through the sliding connection between the outer ring and the inner ring, which greatly improves the disassembly and installation of the shaft wire retaining ring, making the present invention highly efficient, easy to operate, and economical and practical.

[0021] 2. The present invention uses a lever structure to make the power arm larger than the resistance arm to form a labor-saving lever. The staff applies a certain force to the baffle through the labor-saving lever to open the shaft wire baffle, thereby reducing the labor intensity of the staff in removing the thrust washer.

[0022] 3. In the present invention, the outer ring is moved downward to drive the lever and the connecting rod to open the shaft with a wire retaining ring, and then the thrust washer is taken out, which increases the automation of the structure and ensures the actual use effect of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] The present invention is further described below in conjunction with the accompanying drawings and implementation modes.

[0024] Figure 1 is a stereogram of the present invention;

[0025] Figure 2 yes Figure 1 The main view;

[0026] Figure 3 yes Figure 2 Partial cross-sectional view at AA in the middle;

[0027] Figure 4 yes Figure 3 The enlarged view of point B in the middle;

[0028] Figure 5 yes Figure 3 Partial cross-sectional view of the outer ring at CC;

[0029] In the figure: 1. spline shaft; 11. bearing; 12. mounting groove; 13. wire retaining ring for shaft; 2. outer ring; 21. inner ring; 22. tension spring; 23. elastic element; 24. threaded connection; 25. load-bearing ring; 26. stopper; 3. square groove; 31. slide groove; 32. connecting rod No. 1; 33. connecting rod No. 2; 34. stopper; 4. lever; 41. arc groove; 42. connecting rod No. 3; 43. pressure ball; 44. rotation point. DETAILED DESCRIPTION

[0030] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further explained below in conjunction with specific implementation methods.

[0031] like Figures 1 to 5 As shown;

[0032] Embodiment 1;

[0033] A thrust washer comprising:

[0034] Inner ring 21, the inner ring 21 is an annular plate, the inner diameter of the inner ring 21 is equal to the outer diameter of the spline shaft 1, and the outer diameter of the inner ring 21 is not less than the outer diameter of the axial wire retaining ring after installation;

[0035] The outer ring 2 is an annular plate, the inner diameter of the outer ring 2 is not less than the outer diameter of the axial wire retaining ring after installation, and the inner wall of the outer ring 2 is connected to the outer wall of the inner ring 21;

[0036] During operation, the thrust washer of the prior art is installed at the lower part of the shaft wire washer and the upper end of the thrust washer is clamped with the shaft wire retaining ring 13. When disassembling, the staff needs to smash the thrust washer downward to separate it from the shaft wire retaining ring 13, and then remove the shaft wire retaining ring 13 before removing the thrust washer. When installing, the thrust washer needs to be installed on the shaft first, and then the shaft wire retaining ring 13 is installed on the shaft, and then the thrust washer is knocked upward to clamp it on the shaft wire retaining ring 13. The whole working process is cumbersome and laborious, which seriously affects the working efficiency.

[0037] Therefore, the thrust washer is divided into an outer ring 2 and an inner ring 21. When disassembling, the staff moves the outer ring 2 downward to expose the shaft wire retaining ring 13, and then uses the downward force of the lever 4 mechanism on the inner ring 21 to move the retaining plate 34 to both sides so that the retaining plate 34 can open the shaft wire retaining ring 13 from the opening, and then rotates the shaft wire retaining ring 13 to remove the shaft wire retaining ring 13 from the block 26, and finally moves the inner ring 21 and the outer ring 2 upward at the same time to take them out; during assembly, the staff first installs the inner ring 21 and the outer ring 2 on the spline shaft 1 at the same time, and then installs the shaft wire retaining ring 13 in the mounting groove 12 on the spline shaft 1 through the block 26, and finally makes the outer ring 2 wrap around the shaft wire retaining ring 13 to limit it. This process is convenient and labor-saving, so that the present invention has the characteristics of high efficiency, easy operation and economical and practical.

[0038] In this embodiment, the outer ring 2 and the inner ring 21 are in sliding connection.

[0039] During operation, the inner wall of the outer ring 2 is slidably connected to the outer wall of the inner ring 21, and it is more convenient and labor-saving for the staff to move the outer ring 2 downward.

[0040] Embodiment 2;

[0041] The difference compared with Example 1 is:

[0042] In this embodiment, the outer ring 2 and the inner ring 21 are threadedly connected 24 .

[0043] During operation, the inner wall of the outer ring 2 is connected to the outer wall of the inner ring 21 through threads. When the staff removes the shaft wire retaining ring 13, they only need to rotate the outer ring 2 to move the outer ring 2 downward relative to the inner ring 21. It has the advantages of simple structure, reliable connection, and easy assembly and disassembly.

[0044] Embodiment 3;

[0045] The difference compared with Example 1 is:

[0046] In this embodiment, the inner ring 21 and the outer ring 2 are axially connected via a tension spring 22 .

[0047] During work, the staff moves the outer ring 2 downward to expose the shaft wire retaining ring 13. When loosened, the tension spring 22 makes the outer ring 2 wrap around the shaft wire retaining ring 13 again, thereby facilitating the disassembly of the shaft wire washer and reducing vibration when subjected to axial force.

[0048] Embodiment 4;

[0049] The difference compared with Example 3 is:

[0050] In this embodiment, an elastic element 23 is disposed on the bottom surface of the outer ring 2 .

[0051] During operation, the elastic element 23 is fixedly connected to the bottom surface of the outer ring 2. The staff moves the outer ring 2 downward, and the elastic element 23 on the bottom surface of the outer ring 2 is in contact and compressed with the end surface of the bearing 11. At the same time, the shaft wire retaining ring 13 can be exposed, and it will automatically return to its original position when the outer ring 2 is loosened. When the elastic element 23 of the elastic coupling is used, it can be suitable for most working environments, and has stable and easy-to-control performance, high elastic modulus, and good absorption effect when subjected to axial force. It has the advantages of good displacement compensation, shock absorption and impact resistance.

[0052] Embodiment 5;

[0053] The difference compared with Example 1 is:

[0054] In this embodiment, the inner ring 21 is close to the bottom surface of the inner ring 21 and a bearing ring 25 is provided on the outer wall of the inner ring 21 .

[0055] During operation, the bearing ring 25 is fixedly connected to the inner ring 21 , so the bearing ring 25 contacts the end surface of the bearing 11 , thereby increasing the contact area between the inner ring 21 and the end surface of the bearing 11 , thereby ensuring the stability of the structure.

[0056] Embodiment 6;

[0057] The difference compared with Example 1 is:

[0058] In this embodiment, a square groove 3 is provided on the outer wall of the inner ring 21, and the square groove 3 is connected to the upper end surface of the inner ring 21. A sliding groove 31 is provided at the bottom of the square groove 3. The sliding groove 31 is slidably connected to the No. 1 connecting rod 32. One end of the No. 1 connecting rod 32 is hinged to two No. 2 connecting rods 33 at the same time. The No. 2 connecting rod 33 is hinged to a baffle 34. The bottom of the groove is rotatably connected to a lever 4. One end of the lever 4 is located below the No. 1 connecting rod 32 and is hinged to the No. 1 connecting rod 32.

[0059] During operation, the staff pushes the other end of the lever 4 downward, thereby giving an upward force to the No. 1 connecting rod 32, so that the No. 1 connecting rod 32 moves upward in the slide groove 31 and drives the two No. 2 connecting rods 33 to move to the left and right sides respectively. The movement of the No. 2 connecting rod 33 gives a certain force to the baffle 34, so that the baffle 34 is stretched from the opening of the shaft wire retaining ring 13, and then the shaft wire retaining ring 13 is rotated to remove the shaft wire retaining ring 13 from the block 26, and finally the inner ring 21 and the outer ring 2 are moved upward at the same time to be taken out. Moreover, the strength of the No. 1 connecting rod 32, the No. 2 connecting rod 33 and the lever 4 is higher than that of the shaft wire retaining ring 13, thereby reducing the labor intensity of the staff when disassembling the shaft wire retaining ring 13.

[0060] Embodiment 7;

[0061] The difference compared with Example 6 is:

[0062] In this embodiment, an arc groove 41 is provided at the other end of the lever 4 , a third connecting rod 42 is fixedly connected to the inner wall of the outer ring 2 , a pressure ball 43 is fixedly connected to the third connecting rod 42 , and the pressure ball 43 is in contact with the arc groove 41 .

[0063] During operation, the staff moves the outer ring 2 downward to drive the pressure ball 43 fixed to the inner wall of the outer ring 2 to move downward. During the gradual downward movement of the pressure ball 43, the other end of the lever 4 is also driven to move downward gradually. At the same time, the pressure ball 43 is slidably connected to the arc groove 41 at the other end of the lever 4, which increases the automation and work efficiency of the mechanism.

[0064] In this embodiment, the rotation point 44 of the lever 4 is close to the bottom of the No. 1 connecting rod 32 .

[0065] When working, the staff uses the lever principle, that is, to balance the lever 4, the two torques acting on the lever 4 must be equal. Therefore, the rotation point 44 of the lever 4 needs to be close to the hinge position where one end of the lever 4 and the No. 1 connecting rod 32 are connected, so that the staff can use a smaller force to provide a larger force to open the shaft wire retaining ring 13, making the staff work more labor-saving and convenient.

[0066] Embodiment 8;

[0067] The difference compared with Example 1 is:

[0068] In this embodiment, a stopper 26 is provided outside the shaft wire retaining ring 13 and at the inner upper portion, and the stopper 26 is used to limit the shaft wire retaining ring 13 .

[0069] During operation, the upper end surface of the inner ring 21 is fixedly connected to the stopper 26. After the staff opens the shaft wire retaining ring 13, the stopper 26 on the inner ring 21 resists the force on the shaft wire retaining ring 13 to prevent the shaft wire retaining ring 13 from flying out or being lost, thereby reducing economic losses.

[0070] In order to verify the practical application effect of the present invention, the staff of the present invention conducted the following experiments based on the technical differences between the present invention and the prior art:

[0071] Experimental verification:

[0072] 1. Experimental purpose: To verify the speed of disassembling and installing thrust washers of the present invention relative to the prior art;

[0073] 2. Experimental instruments: stopwatch, calipers, hammer, sleeve;

[0074] 3. Experimental process:

[0075] 3.1 The staff selected a thrust washer of the present invention, recorded the time required to disassemble and install the thrust washer, and tested it 6 times;

[0076] 3.2 The staff selected a thrust washer of the prior art, recorded the time required to remove and install the thrust washer, and tested it 6 times;

[0077] 4. Experimental results:

[0078] The following is the data compiled by the staff of the present invention:

[0079] Experimental group-the present invention

[0080] Table 1

[0081]

[0082] Control group - current market

[0083] Table 2

[0084]

[0085] By comparing Table 1 and Table 2, it can be seen that both the installation time and the removal time of the thrust washer are significantly shorter than those of the prior art.

[0086] 5. Experimental summary

[0087] By comparing Table 1 and Table 2, it can be seen that the installation time of the thrust washer and the removal time of the thrust washer in the present invention are obviously shorter than those in the prior art. Therefore, it can be seen that the implementation effect of the present invention is better than the prior art on the market, so the present invention has broad market application prospects.

[0088] Experimental conclusion:

[0089] In addition to the characteristics of being able to quickly install and disassemble the thrust washer, the present invention also has the characteristics of preventing the shaft wire retaining ring from falling and automatically disassembling the shaft wire retaining ring. At the same time, the present invention is efficient, easy to operate, economical and practical, so the present invention has broad market application prospects.

[0090] In the description of the present invention, it should be noted that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate directions or positional relationships based on the attached Figure 2The orientation or positional relationship shown is only for the convenience of describing the present invention and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation. Therefore, it cannot be understood as limiting the scope of protection of the present invention. In addition, the terms "first", "second", "third", etc. are only used to distinguish the description and cannot be understood as indicating or implying relative importance.

[0091] The above shows and describes the basic principles, main features and advantages of the present invention. It should be understood by those skilled in the art that the present invention is not limited to the above embodiments. The above embodiments and descriptions are only for explaining the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which fall within the scope of the present invention. The scope of protection of the present invention is defined by the attached claims and their equivalents.

Claims

1. A thrust washer, characterized in that: include: An inner ring (21), the inner ring (21) is an annular plate, the inner diameter of the inner ring (21) is equal to the outer diameter of the spline shaft (1), and the outer diameter of the inner ring (21) is not less than the outer diameter of the axial wire retaining ring after installation; An outer ring (2), the outer ring (2) is in the shape of an annular plate, the inner diameter of the outer ring (2) is not less than the outer diameter of the axial wire retaining ring after installation, and the inner wall of the outer ring (2) is connected to the outer wall of the inner ring (21); The outer wall of the inner ring (21) is provided with a square groove (3), the square groove (3) is communicated with the upper end surface of the inner ring (21), the bottom of the square groove (3) is provided with a slide groove (31), the slide groove (31) is slidably connected to the No. 1 connecting rod (32), one end of the No. 1 connecting rod (32) is hinged to two No. 2 connecting rods (33), the No. 2 connecting rod (33) is hinged to a baffle (34), the bottom of the groove is rotatably connected to a lever (4), one end of the lever (4) is located below the No. 1 connecting rod (32) and is hinged to the No. 1 connecting rod (32); The other end of the lever (4) is provided with an arc groove (41), the inner wall of the outer ring (2) is fixedly connected with a third connecting rod (42), the third connecting rod (42) is fixedly connected with a pressure ball (43), and the pressure ball (43) is in contact with the arc groove (41); The rotation point (44) of the lever (4) is close to the bottom of the No. 1 connecting rod (32). By moving the outer ring (2) downward, the pressure ball (43) fixed to the inner wall of the outer ring (2) is driven to move downward. In the process of gradually moving the pressure ball (43) downward, the other end of the lever (4) is also driven to move downward gradually, thereby giving an upward force to the No. 1 connecting rod (32), so that the No. 1 connecting rod (32) moves upward in the slide groove (31) and drives the two No. 2 connecting rods (33) to move to the left and right sides respectively. The movement of the No. 2 connecting rod (33) gives a certain force to the baffle (34), so that the baffle (34) is stretched from the opening of the shaft wire baffle (13), and then the shaft wire baffle (13) is rotated to remove the shaft wire baffle (13) from the block (26), and finally the inner ring (21) and the outer ring (2) are moved upward at the same time to be removed.

2. A thrust washer according to claim 1, characterized in that: The outer ring (2) and the inner ring (21) are slidably connected.

3. A thrust washer according to claim 1, characterized in that: The outer ring (2) and the inner ring (21) are threadedly connected (24).

4. A thrust washer according to claim 2, characterized in that: The inner ring (21) and the outer ring (2) are axially connected via a tension spring (22).

5. A thrust washer according to claim 2, characterized in that: An elastic element (23) is provided on the bottom surface of the outer ring (2).

6. A thrust washer according to claim 1 or 5, characterized in that: A bearing ring (25) is provided on the outer wall close to the bottom surface of the inner ring (21).

7. A thrust washer according to claim 1, characterized in that: A stopper (26) is provided outside the shaft wire retaining ring (13) and on the upper part of the inner ring (21), and the stopper (26) is used to limit the position of the shaft wire retaining ring (13).

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