A clutch driven plate hub assembly assembly device

Abstract

This utility model discloses a clutch driven disc hub assembly device, relating to the field of clutch driven discs. It includes a lower base plate with a lower clearance groove; a fixed plate fixed to the lower base plate, with a lower spring seat positioning groove on the fixed plate corresponding to the lower clearance groove for positioning the lower spring seat, and the lower spring seat positioning groove communicating with the lower clearance groove; a vertical plate vertically fixed to the lower base plate; and a rocker arm, one end rotatably connected to the vertical plate, the other end of which is fitted with a pressure block, the pressure block being perpendicular to the rocker arm. An upper clearance groove is formed at the lower part of the pressure block, and an upper spring seat positioning groove is formed at the lower part of the upper clearance groove for positioning the upper spring seat. During assembly, the rocker arm presses down on the pressure block, pressing the upper and lower spring seats relative to the rubber spring. This utility model pre-compresses the spring before assembling the hub, making hub assembly convenient, improving production efficiency, and meeting the assembly requirements of the spring and hub.

Description

Technical Field

[0001] This utility model relates to the field of clutch driven discs, and more specifically to a clutch driven disc hub assembly device. Background Technology

[0002] Driven disc hubs typically have spring slots to mate with springs. However, in existing technology, springs are usually assembled in a free state, where the spring preload is relatively high, making it very difficult, time-consuming, labor-intensive, and inefficient to assemble the spring into the hub. Utility Model Content

[0003] The purpose of this utility model is to overcome the shortcomings of the existing technology and provide a clutch driven disc hub assembly device, which pre-compresses the spring and then assembles the disc hub, making disc hub assembly convenient, improving production efficiency, and meeting the assembly requirements of spring and disc hub.

[0004] The objective of this utility model is achieved through the following technical solution: This clutch driven disc hub assembly assembly device is used to assemble a driven disc hub assembly, wherein the driven disc hub assembly includes a hub, and several grooves are formed on the outer periphery of the hub. Both ends of each groove are inwardly folded to form a flange. The two ends of a rubber spring are respectively assembled into the grooves via an upper spring seat and a lower spring seat. The device includes: The bottom plate has a lower clearance groove. A fixing plate is fixed on the bottom plate, and a lower spring seat positioning groove is opened on the fixing plate at a position corresponding to the lower clearance groove for positioning the lower spring seat, and the lower spring seat positioning groove is connected to the lower clearance groove. Vertical plate, fixed vertically to the bottom plate; and The rocker arm has one end rotatably connected to the vertical plate and the other end is fitted with a pressure block. The pressure block is perpendicular to the rocker arm. An upper clearance groove is provided at the bottom of the pressure block, and an upper spring seat positioning groove is provided at the bottom of the upper clearance groove to position the upper spring seat. During assembly, the rocker arm is used to press down the pressure block to press the upper spring seat and the lower spring seat against the rubber spring. The flange at the lower end of the groove extends into the lower clearance groove to lock the lower spring seat, and the flange at the upper end of the groove extends into the upper clearance groove to lock the upper spring seat, thereby realizing the assembly of the driven disc hub assembly.

[0005] As a further technical solution, both the upper and lower spring seats are provided with positioning protrusions, and the rubber spring is provided with positioning holes at positions corresponding to the positioning protrusions, forming a concave-convex fit.

[0006] As a further technical solution, a slot is opened at the top of the upper spring seat and a slot is also opened at the bottom of the lower spring seat. Both the upper and lower spring seats cooperate with the flange of the disc hub through the corresponding slots to achieve slot-type positioning.

[0007] As a further technical solution, the fixing plate is fixed to the lower base plate by several bolts A, and the vertical plate is fixed to the lower base plate by several bolts B.

[0008] As a further technical solution, a mounting groove is opened at the top of the vertical plate for inserting a rocker arm. A fixed shaft is used to connect the vertical plate and the rocker arm, and both ends of the fixed shaft are locked to the vertical plate by nuts B. Washers are provided between the rocker arm and the side wall of the mounting groove on both sides, and the washers are fitted on the fixed shaft.

[0009] As a further technical solution, a notch is opened at the top of the pressure block for inserting a rocker arm. A bolt C passes through the pressure block and the rocker arm and is locked with a nut A to fix the pressure block and the rocker arm in place.

[0010] As a further technical solution, an extended sleeve is connected to the end of the rocker arm away from the vertical plate.

[0011] As a further technical solution, the distance between the end of the extended sleeve furthest from the rocker and the bolt C is taken as the power arm L5, and the distance between the bolt C and the fixed shaft is taken as the resistance arm L6, and L5≥3L6.

[0012] As a further technical solution, the gap L7 between the lower surface of the rocker arm and the lower surface of the notch of the pressure block is 1-2mm, and the distance between the lower surface of the rocker arm and the lower surface of the mounting groove of the vertical plate is L8, which is equal to the distance of the rubber spring pressing.

[0013] As a further technical solution, before the rubber springs are compressed, L1+L2+L3>L4; after the rubber springs are compressed, L1+L2+L3'≤L4, where L1 is the height dimension of the upper spring seat, L2 is the height dimension of the lower spring seat, L3 is the height dimension of the rubber spring in its free state, L3' is the height dimension of the rubber spring in its compressed state, and L4 is the groove dimension of the hub.

[0014] The beneficial effects of this utility model are as follows: 1. Press the rubber spring together with the upper and lower spring seats first, and then assemble it with the driven disc hub to ensure that the spring assembly can be smoothly inserted into the groove of the disc hub, so as to avoid falling off during assembly and improve assembly efficiency. 2. An extended sleeve is installed on the rocker arm, with the fixed shaft as the fulcrum, and the length of the effort arm is greater than or equal to three times the length of the resistance arm, forming a force-saving lever; 3. A gap is set between the rocker arm and the pressure block, so that the pressure block can rotate slightly around bolt C, thereby making it easier to hold the upper spring seat and ensuring smooth pressing. 4. A gap is also provided between the rocker arm and the mounting slot of the vertical plate so that the bottom surface of the mounting slot can limit the lower surface of the rocker arm, preventing the upper and lower spring seats and the rubber spring from being over-pushed and skewed, thus ensuring assembly accuracy. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the exploded structure of this utility model.

[0016] Figure 2 This is a schematic diagram of the assembled structure of this utility model.

[0017] Figure 3 This is a schematic diagram of the spring assembly and the disc hub in this utility model.

[0018] Figure 4 This is a schematic diagram of the structure of the spring assembly and the disc hub after assembly in this utility model.

[0019] Figure 5 This is a cross-sectional structural diagram of the press-fit spring assembly of this utility model.

[0020] Figure 6 This is a structural diagram of the press-fit spring assembly and disc hub of this utility model.

[0021] Figure 7 This is a schematic diagram of the structure of the medium-pressure material block of this utility model.

[0022] Figure 8 This is a structural diagram of the spring assembly in this utility model.

[0023] Figure 9 This is a schematic diagram of the spring assembly structure after press-fitting in this utility model.

[0024] Figure 10 This is a schematic diagram of the spring assembly structure before press-fitting in this utility model.

[0025] Explanation of reference numerals in the attached drawings: Bolt A1, Lower base plate 2, Lower clearance groove 2-1, Fixing plate 3, Lower spring seat positioning groove 3-1, Bolt B4, Vertical plate 5, Mounting groove 5-1, Nut A6, Nut B7, Washer 8, Fixing shaft 9, Bolt C10, Extended sleeve 11, Pressure block 12, Upper clearance groove 12-1, Upper spring seat positioning groove 12-2, Notch 12-3, Rocker arm 13, Upper spring seat 14, Rubber spring 15, Lower spring seat 16, Hub 17, Groove 17-1, Flange 17-2, Positioning protrusion 18, Positioning hole 19, Slot 20. Detailed Implementation

[0026] The present invention will now be described in detail with reference to the accompanying drawings: Example: As attached Figures 1-10As shown, this clutch driven disc hub assembly assembly device includes bolt A1, lower base plate 2, lower clearance groove 2-1, fixing plate 3, lower spring seat positioning groove 3-1, bolt B4, vertical plate 5, mounting groove 5-1, nut A6, nut B7, washer 8, fixing shaft 9, bolt C10, extended sleeve 11, pressure block 12, upper clearance groove 12-1, upper spring seat positioning groove 12-2, notch 12-3, rocker arm 13, upper spring seat 14, rubber spring 15, lower spring seat 16, disc hub 17, groove 17-1, flange 17-2, positioning protrusion 18, positioning hole 19, and slot 20.

[0027] Reference Appendix Figure 3 The figure shows the structure of the driven disc hub assembly in the unassembled state, i.e., before pressing and merging. The dimensions L1 of the upper spring seat 14 + L2 of the lower spring seat 16 + L3 of the free state of the rubber spring 15 are greater than the dimensions L4 of the groove 17-1 of the disc hub 17. Because the preload of the rubber spring 15 is relatively large, the upper spring seat 14, the lower spring seat 16 and the rubber spring 15 need to be properly fitted together for pressing and merging. After pressing and merging, the dimensions L1 of the upper spring seat 14 + L2 of the lower spring seat 16 + L3 of the pressed state of the rubber spring 15 are less than or equal to the dimensions L4 of the groove 17-1 of the disc hub 17. At this point, the disc hub 17 is placed for assembly.

[0028] The assembled driven disc hub assembly, as shown Figure 4 As shown (only one assembly is shown in the figure; in reality, all four grooves 17-1 need to be assembled), it includes an upper spring seat 14, a rubber spring 15, a lower spring seat 16, and a hub 17. The hub 17 is made of 45# steel. The upper spring seat 14 and lower spring seat 16 have identical structures and are made of high-strength plastic. The rubber spring 15 is a compressible elastic rubber element. Four grooves 17-1 are formed on the outer periphery of the hub 17. Each groove 17-1 has two ends that are inwardly folded to form a flange 17-2. The two ends of the rubber spring 15 are respectively assembled into the grooves 17-1 via the upper spring seat 14 and the lower spring seat 16. Preferably, as shown... Figure 9 , 10 As shown, both the upper spring seat 14 and the lower spring seat 16 are provided with cylindrical positioning protrusions 18, and the rubber spring 15 is provided with positioning holes 19 at positions corresponding to the positioning protrusions 18, forming a concave-convex fit. At the same time, a slot 20 is opened at the top of the upper spring seat 14 and a slot 20 is also opened at the bottom of the lower spring seat 16. Both the upper spring seat 14 and the lower spring seat 16 are engaged with the flange 17-2 of the hub 17 through the corresponding slots 20 to achieve slot-type positioning.

[0029] like Figure 1 , 2As shown in Figure 5, a lower clearance groove 2-1 is formed on the lower base plate 2. The fixing plate 3 is fixed to the lower base plate 2 by several bolts A1, and a lower spring seat positioning groove 3-1 is formed on the fixing plate 3 at a position corresponding to the lower clearance groove 2-1. The lower spring seat 16 is positioned and installed through the lower spring seat positioning groove 3-1, and the lower spring seat positioning groove 3-1 is in communication with the lower clearance groove 2-1. The flange 17-2 at the lower end of the groove 17-1 (hub 17) extends into the lower clearance groove 2-1 to facilitate locking the slot 20 on the lower spring seat 16.

[0030] The vertical plate 5 is vertically fixed to the lower base plate 2 by several bolts B4. One end of the rocker arm 13 is rotatably connected to the vertical plate 5, and the other end of the rocker arm 13 is fitted with a pressure block 12. Preferably, a notch 12-3 is opened at the top of the pressure block 12, and the rocker arm 13 is inserted into the notch 12-3. The pressure block 12 and the rocker arm 13 are fixedly connected by bolts C10 passing through the pressure block 12 and the rocker arm 13 and locked with nuts A6. The pressure block 12 is arranged vertically relative to the rocker arm 13. An upper clearance groove 12-1 is opened at the lower part of the pressure block 12, and an upper spring seat positioning groove 12-2 is opened at the lower part of the upper clearance groove 12-1 to position the upper spring seat 14. During assembly, the rocker arm 13 presses down on the pressure block 12, so that the upper spring seat 14 and the lower spring seat 16 are pressed against the rubber spring 15. The flange 17-2 at the upper end of the groove 17-1 can extend into the upper relief groove 12-1 to easily lock the slot 20 on the upper spring seat 14, thereby realizing the assembly of the driven disc hub assembly.

[0031] Reference Appendix Figure 1 , 2 A mounting groove 5-1 is made at the top of the vertical plate 5 to accommodate the rocker arm 13. A fixed shaft 9 connects the vertical plate 5 and the rocker arm 13, and both ends of the fixed shaft 9 are locked to the vertical plate 5 with nuts B7. Washers 8 are provided on both sides of the rocker arm 13 and between them and the side walls of the mounting groove 5-1 (with a 0.5mm gap to allow the rocker arm 13 to rotate up and down). The washers 8 are fitted onto the fixed shaft 9. In addition, a screw is provided at the end of the rocker arm 13 away from the vertical plate 5, and an extended sleeve 11 is connected to the screw (threaded) through it.

[0032] like Figure 5As shown, the lower base plate 2, fixed plate 3, vertical plate 5, fixed shaft 9, bolt C10, extended sleeve 11, pressure block 12, and rocker arm 13 are all rigid components, the rubber spring 15 is a compressible elastic component, and the spring seat 16 is a high-strength plastic component. The distance between the end of the extended sleeve 11 furthest from the rocker arm 13 and the bolt C10 is taken as the effort arm L5, and the distance between the bolt C10 and the fixed shaft 9 is taken as the resistance arm L6. L5 ≥ 3L6, forming a force-saving lever. Wherein, effort × effort arm = resistance × resistance arm, i.e., F1 × L5 = F2 × L6. The fulcrum is the fixed shaft 9, the effort is the downward force applied to the extended sleeve 11, the effort arm is the distance L5, and the resistance is the spring force of the rubber spring 15 resisting compression, the resistance arm is the distance L6. Preferably, the gap L7 between the lower surface of the rocker arm 13 and the lower surface of the notch 12-3 of the pressure block 12 is 1-2mm. This allows the pressure block 12 to rotate slightly around the bolt C10 to more easily press against the upper spring seat 14. The distance between the lower surface of the rocker arm 13 and the lower surface of the mounting groove 5-1 of the vertical plate 5 is L8. When the extended sleeve 11 and the rocker arm 13 are parallel to the lower base plate 2, L8 = the distance of the rubber spring 15 pressing down. This allows the bottom surface of the mounting groove 5-1 of the vertical plate 5 to limit the lower end face of the rocker arm 13, preventing the upper spring seat 14, the lower spring seat 16, and the rubber spring 15 from being over-pushped or tilted.

[0033] like Figure 3 , 4 As shown, before the rubber spring 15 is compressed, L1+L2+L3>L4, and after the rubber spring 15 is compressed, L1+L2+L3'≤L4. Here, L1 is the height dimension of the upper spring seat 14, L2 is the height dimension of the lower spring seat 16, L3 is the height dimension of the rubber spring 15 in its free state, L3' is the height dimension of the rubber spring 15 in its compressed state, and L4 is the dimension of the groove 17-1 of the hub 17.

[0034] The working process of this utility model: During assembly, the rubber spring 15 is fixed at both ends by the upper spring seat 14 and the lower spring seat 16, and then placed into the lower spring seat positioning groove 3-1 in the middle of the fixing plate 3, as shown. Figure 8 As shown. The lower end of the pressure block 12 has a positioning groove 12-2 for the upper spring seat 14, which matches the upper spring seat 14. At this time, the extended sleeve 11 is held by hand, and downward pressure (i.e., power F1) is applied. The extended sleeve 11 then drives the pressure block 12 to rotate downwards around the fixed shaft 9 via the rocker arm 13. When the extended sleeve 11 and the rocker arm 13 are nearly parallel to the upper surface of the fixed plate 3, the pressure block 12 contacts the upper spring seat 14, as shown. Figure 5 As shown. Then the rubber spring 15 begins to press and close, and the pressing and closing ends when the lower surface of the rocker arm 13 contacts the bottom surface of the mounting groove 5-1 corresponding to the middle of the upper end of the vertical plate 5. Finally, the disc hub 17 is placed in, as shown. Figure 6 As shown, the upper and lower flanges 17-2 of the groove 17-1 engage with the slots 20 on the upper spring seat 14 and the lower spring seat 16, thereby pressing the rubber spring 15 from the middle. This allows the extended sleeve 11 to be lifted, and the driven disc hub assembly to be removed, thus completing the entire assembly.

[0035] It is understood that, for those skilled in the art, any equivalent substitutions or modifications to the technical solutions and inventive concepts of this utility model should fall within the protection scope of the appended claims.

Claims

1. A clutch driven disc hub assembly assembly device for assembling a driven disc hub assembly, the driven disc hub assembly including a hub (17), the outer periphery of the hub (17) having a plurality of grooves (17-1), each groove (17-1) having two ends inwardly forming a flange (17-2), and two ends of a rubber spring (15) being assembled in the groove (17-1) through an upper spring seat (14) and a lower spring seat (16) respectively, characterized in that, include: The lower base plate (2) has a lower clearance groove (2-1) on it. A fixing plate (3) is fixed on the bottom plate (2), and a lower spring seat positioning groove (3-1) is opened on the fixing plate (3) at a position corresponding to the lower clearance groove (2-1) for positioning the lower spring seat (16), and the lower spring seat positioning groove (3-1) and the lower clearance groove (2-1) are connected. The vertical plate (5) is fixed vertically to the lower base plate (2); and The rocker arm (13) has one end rotatably connected to the vertical plate (5) and the other end is fitted with a pressure block (12). The pressure block (12) is perpendicular to the rocker arm (13). An upper clearance groove (12-1) is opened at the lower part of the pressure block (12). At the same time, an upper spring seat positioning groove (12-2) is opened at the lower part of the upper clearance groove (12-1) to position the upper spring seat (14). During assembly, the rocker arm (13) presses down the pressure block (12) to press the upper spring seat (14) and the lower spring seat (16) against the rubber spring (15). The flange (17-2) at the lower end of the groove (17-1) extends into the lower clearance groove (2-1) to lock the lower spring seat (16), and the flange (17-2) at the upper end of the groove (17-1) extends into the upper clearance groove (12-1) to lock the upper spring seat (14), thereby realizing the assembly of the driven disc hub assembly.

2. The clutch driven disc hub assembly assembly device according to claim 1, characterized in that: Both the upper spring seat (14) and the lower spring seat (16) are provided with positioning protrusions (18), and the rubber spring (15) is provided with positioning holes (19) at positions corresponding to the positioning protrusions (18), forming a concave-convex fit.

3. The clutch driven disc hub assembly assembly device according to claim 1 or 2, characterized in that: A slot (20) is opened at the top of the upper spring seat (14), and a slot (20) is also opened at the bottom of the lower spring seat (16). The upper spring seat (14) and the lower spring seat (16) are engaged with the flange (17-2) of the hub (17) through the corresponding slot (20) to achieve slot-type positioning.

4. The clutch driven disc hub assembly assembly device according to claim 1, characterized in that: The fixing plate (3) is fixed to the lower base plate (2) by several bolts A (1), and the vertical plate (5) is fixed to the lower base plate (2) by several bolts B (4).

5. The clutch driven disc hub assembly assembly device according to claim 1, characterized in that: The top of the vertical plate (5) has an installation groove (5-1) for inserting the rocker arm (13). A fixed shaft (9) is used to connect the vertical plate (5) and the rocker arm (13). The two ends of the fixed shaft (9) are locked to the vertical plate (5) by nuts B (7). Washers (8) are provided between the rocker arm (13) and the side wall of the installation groove (5-1) on both sides. The washers (8) are fitted on the fixed shaft (9).

6. The clutch driven disc hub assembly assembly device according to claim 5, characterized in that: The pressure block (12) has a notch (12-3) at the top for inserting the rocker arm (13). The pressure block (12) and the rocker arm (13) are connected by a bolt C (10) through it and locked with a nut A (6).

7. The clutch driven disc hub assembly assembly device according to claim 6, characterized in that: The end of the rocker arm (13) away from the vertical plate (5) is connected to an extended sleeve (11).

8. The clutch driven disc hub assembly assembly device according to claim 7, characterized in that: The distance between the end of the extended sleeve (11) away from the rocker arm (13) and the bolt C (10) is taken as the power arm L5, and the distance between the bolt C (10) and the fixed shaft (9) is taken as the resistance arm L6, and L5≥3L6.

9. The clutch driven disc hub assembly assembly device according to claim 6, characterized in that: The gap L7 between the lower surface of the rocker arm (13) and the lower surface of the notch (12-3) of the pressure block (12) is 1-2mm, and the distance between the lower surface of the rocker arm (13) and the lower surface of the mounting groove (5-1) of the vertical plate (5) is L8. L8 is equal to the distance between the rubber spring (15) and the pressure plate.

10. The clutch driven disc hub assembly assembly device according to claim 1, characterized in that: Before the rubber spring (15) is compressed, L1+L2+L3>L4; after the rubber spring (15) is compressed, L1+L2+L3'≤L4, where L1 is the height dimension of the upper spring seat (14), L2 is the height dimension of the lower spring seat (16), L3 is the height dimension of the rubber spring (15) in its free state, L3' is the height dimension of the rubber spring (15) in its compressed state, and L4 is the dimension of the groove (17-1) of the hub (17).

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