Wear-resistant centrifugal block assembly convenient to adjust and replace

Abstract

The utility model discloses a wear-resistant centrifugal block assembly convenient to adjust and replace, relates to the technical field of centrifugal blocks, and solves the problems that the two ends of a spring of an existing centrifugal block assembly are generally and directly connected with a centrifugal block and a rotating block in a sliding mode, abrasion is prone to occurring, the service life is shortened, and the spring is inconvenient to adjust and replace. According to the scheme, the device comprises a rotating disc, three pin shafts are fixedly connected to one side of the outer surface of the rotating disc in an annular array mode, the outer surfaces of the pin shafts are fixedly sleeved with first bearings, and the outer rings of the first bearings are fixedly sleeved with centrifugal blocks. The two ends of the centrifugal block and the two ends of the telescopic spring are connected through the first bearing and the second bearing correspondingly, original sliding friction is changed into rolling friction, and therefore the friction force is reduced, and the wear-resisting effect is achieved; and the spring assembly is convenient to mount and replace.

Description

Technical Field

[0001] This utility model relates to the field of centrifuge block technology, specifically a wear-resistant centrifuge block assembly that is easy to adjust and replace. Background Technology

[0002] The centrifugal block is an important connecting structural component inside a centrifugal clutch. A centrifugal clutch is a clutch in which the centrifugal block automatically separates or engages under the action of centrifugal force when the drive shaft or drive shaft reaches a certain speed. According to the search, Chinese patent authorization number CN215553621U discloses a centrifugal block assembly for ATVs, including a rotating block, a cylindrical block, a centrifugal block, a tension spring, an outer sleeve block, and an annular sleeve block. The top of the rotating block is welded with cylindrical blocks near the corners, and a shaft hole is opened through the top of the rotating block near the center. When this new centrifugal block is connected to the rotating shaft, the connection point has a reinforced structure, which is not easy to break or be damaged. The centrifugal block has a counterweight structure that is easy to disassemble, which can easily reduce or increase the weight of the centrifugal block as needed.

[0003] While the above technical solution can change the weight of the centrifuge block, the two ends of the spring in this solution are inserted into corresponding spring sockets, resulting in sliding friction between the spring and the spring sockets. This friction is relatively large, and after prolonged use, the centrifuge block and the rotating block will be worn, thus affecting the normal use of the centrifuge block assembly and reducing its service life. Furthermore, the spring tension cannot be adjusted, and the spring has a certain tension at the initial installation stage, requiring the spring to be pulled during installation and disassembly, which is inconvenient for operation. Utility Model Content

[0004] To address the shortcomings of existing technologies, this utility model provides a wear-resistant and easily adjustable centrifugal block assembly. This solves the problems mentioned in the background art, where the two ends of the spring in the existing centrifugal block assembly are inserted into corresponding spring holes, resulting in sliding friction between the spring and the spring holes. This friction is relatively high, and after prolonged use, the centrifugal block and rotating block will wear down, affecting the normal use of the centrifugal block assembly and reducing its service life. Furthermore, the spring tension cannot be adjusted, and the spring has a certain tension at the initial installation stage, requiring pulling the spring during installation and disassembly, which is inconvenient.

[0005] To achieve the above objectives, this utility model is implemented through the following technical solution: a wear-resistant and easily adjustable centrifugal block assembly, including a turntable, three pins are fixedly connected in a ring array on one side of the outer surface of the turntable, a first bearing is fixedly sleeved on the outer surface of the pins, a centrifugal block is fixedly sleeved on the outer ring of the first bearing, an adjustment mechanism is fixedly installed on the outer surface of the turntable near one end of the centrifugal block, and a connecting mechanism is fixedly connected to the end of the centrifugal block away from the pins and the movable end of the adjustment mechanism, and a spring assembly is installed between two adjacent connecting mechanisms;

[0006] The adjustment mechanism includes a rectangular sleeve fixedly connected to the outer surface of the turntable, a rectangular rod slidably connected inside the rectangular sleeve, and a screw rotatably connected through the outer surface of the rectangular sleeve. One end of the screw extends into the interior of the rectangular rod and is threadedly connected to the interior of the rectangular rod.

[0007] Preferably, one end of the screw extends to the outside of the rectangular sleeve, and a knob is fixedly connected to the end of the screw located outside the rectangular sleeve to facilitate rotation of the screw.

[0008] Preferably, the connecting mechanism includes a connecting block, one side of which is fixedly connected to one end of a corresponding centrifugal block and a rectangular rod. A fixing cover is provided on one side of the connecting block. Both one side of the connecting block and one side of the fixing cover are semi-circular. Two inserts are symmetrically fixedly connected to one side of the outer surface of the fixing cover. Two slots that slide and connect with the inserts are symmetrically opened on one side of the outer surface of the connecting block, which facilitates the positioning and connection of the connecting block and the fixing cover.

[0009] Preferably, the connecting mechanism further includes an arc-shaped mounting groove on one side of the outer surface of the connecting block. An arc-shaped plate is slidably embedded in the arc-shaped mounting groove. Both ends of the arc-shaped plate are fixedly connected to insert rods. The outer surfaces of the connecting block and the insert block are provided with insertion holes that mate with the insert rods. The outer surface of the arc-shaped plate is provided with a countersunk hole. A connecting bolt is rotatably connected through the countersunk hole. One end of the connecting bolt is threaded into the inner surface of the connecting block. The connecting bolt facilitates the installation and removal of the arc-shaped plate, thereby facilitating the removal of the fixed cover.

[0010] Preferably, the spring assembly includes a telescopic spring, with connecting rods fixedly connected to both ends of the telescopic spring. A second bearing is fixedly sleeved on the outer surface of the connecting rod. The second bearing is located inside the adjacent connecting block and the fixing cover, which facilitates the reset function of the centrifugal block and reduces wear.

[0011] Preferably, a central hole is provided at the center of the outer surface of the turntable, and a spline sleeve is fixedly connected through the center hole. A retaining tooth is fixedly connected to one side of the outer surface of the centrifuge block to facilitate the function of the centrifuge block assembly.

[0012] This invention provides a wear-resistant and easily adjustable centrifuge block assembly. It offers the following advantages:

[0013] 1. This wear-resistant and easily adjustable centrifugal block assembly connects the two ends of the centrifugal block and the two ends of the telescopic spring through a first bearing and a second bearing, respectively. This transforms the original sliding friction into rolling friction, thereby reducing friction and achieving a wear-resistant effect. This solves the problem that in existing centrifugal block assemblies, the two ends of the spring are generally directly connected to the centrifugal block and the rotating block in a sliding connection, which is prone to wear and reduces service life.

[0014] 2. This wear-resistant and easily adjustable centrifugal block assembly, through the set connecting and adjusting components, can not only adjust the tension of the telescopic spring, but also facilitate the installation and replacement of the spring assembly. This solves the problem that existing centrifugal block assemblies require stretching the spring when replacing and installing the spring, which is inconvenient due to the spring force. Attached Figure Description

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

[0016] Figure 2 This is a schematic diagram of the centrifuge block structure of this utility model;

[0017] Figure 3 This is a schematic diagram of the rectangular sleeve of this utility model;

[0018] Figure 4 This is a schematic diagram of the connecting block structure of this utility model.

[0019] In the diagram: 1. Turntable; 2. Pin; 3. First bearing; 4. Centrifugal block; 5. Adjustment mechanism; 51. Rectangular sleeve; 52. Rectangular rod; 53. Screw; 54. Knob; 6. Connecting mechanism; 61. Connecting block; 62. Fixing cover; 63. Insert block; 64. Slot; 65. Arc-shaped mounting groove; 66. Arc-shaped plate; 67. Insert rod; 68. Insertion hole; 69. Countersunk hole; 610. Connecting bolt; 7. Spring assembly; 71. Telescopic spring; 72. Connecting rod; 73. Second bearing; 8. Center hole; 9. Spline sleeve; 10. Clamping tooth. Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0021] Example 1: As Figures 1 to 3 As shown, a wear-resistant and easily adjustable centrifugal block assembly includes a turntable 1. Three pins 2 are fixedly connected in a ring array on one side of the outer surface of the turntable 1. A first bearing 3 is fixedly sleeved on the outer surface of the pins 2. A centrifugal block 4 is fixedly sleeved on the outer ring of the first bearing 3. An adjustment mechanism 5 is fixedly installed on the outer surface of the turntable 1 near one end of the centrifugal block 4. The adjustment mechanism 5 includes a rectangular sleeve 51 fixedly connected to the outer surface of the turntable 1. A rectangular rod 52 is slidably connected inside the rectangular sleeve 51. The outer surface of the rectangular sleeve 51 is rotatably connected through it. A screw 53 is provided, one end of which extends into the interior of a rectangular rod 52 and is threadedly connected to the interior of the rectangular rod 52. Rotation of the screw 53 can cause the rectangular rod 52 to extend or retract through the thread, thereby changing the extension or retraction of the telescopic spring 71 and adjusting the tension of the telescopic spring 71. Furthermore, by extending the rectangular rod 52, the telescopic spring 71 can be released directly, facilitating the installation and removal of the telescopic spring 71. This solves the problem that existing centrifugal block assemblies have inconvenient spring force adjustment and require stretching the spring during installation and removal, causing operational inconvenience.

[0022] One end of the screw 53 extends to the outside of the rectangular sleeve 51, and a knob 54 is fixedly connected to the end of the screw 53 located outside the rectangular sleeve 51. The knob 54 facilitates the rotation of the screw 53.

[0023] Example 2: Figures 1 to 4 As shown, the end of the centrifugal block 4 away from the pin 2 and the movable end of the adjusting mechanism 5 are both fixedly connected to a connecting mechanism 6. The connecting mechanism 6 includes a connecting block 61. One side of the connecting block 61 is fixedly connected to one end of the corresponding centrifugal block 4 and the rectangular rod 52. A fixing cover 62 is provided on one side of the connecting block 61. One side of the connecting block 61 and one side of the fixing cover 62 are both semi-circular. Two inserts 63 are symmetrically fixedly connected to one side of the outer surface of the fixing cover 62. Two slots 64 that slide and connect to the inserts 63 are symmetrically opened on one side of the outer surface of the connecting block 61. The fixing cover 62 and the connecting block 61 facilitate the fixing of the second bearing 73 in the spring assembly 7, and the inserts 63 and the slots 64 facilitate the positioning and installation of the fixing cover 62.

[0024] The connecting mechanism 6 also includes an arc-shaped mounting groove 65 on one side of the outer surface of the connecting block 61. An arc-shaped plate 66 is slidably embedded inside the arc-shaped mounting groove 65. Both ends of the arc-shaped plate 66 are fixedly connected to insert rods 67. The outer surfaces of the connecting block 61 and the insert block 63 are provided with insertion holes 68 that cooperate with the insert rods 67. The outer surface of the arc-shaped plate 66 is provided with countersunk holes 69. A connecting bolt 610 is rotatably connected through the countersunk holes 69. One end of the connecting bolt 610 is threaded to the inside of the connecting block 61. The arc-shaped plate 66 can be quickly installed and removed through the connecting bolt 610. Then, the installation and removal of the fixing cover 62 is facilitated by the cooperation of the insert rods 67 and the insertion holes 68. This solves the problem that the centrifugal blocks in the existing centrifugal block assemblies are generally integral structures, and after wear at the connection with the spring, the whole assembly needs to be replaced, which increases maintenance costs.

[0025] Example 3: As Figure 1 and Figure 2 As shown, a spring assembly 7 is installed between two adjacent connecting mechanisms 6. The spring assembly 7 includes a telescopic spring 71, and both ends of the telescopic spring 71 are fixedly connected to a connecting rod 72. A second bearing 73 is fixedly sleeved on the outer surface of the connecting rod 72. The second bearing 73 is located inside the adjacent connecting block 61 and the fixed cover 62. Both ends of the telescopic spring 71 are connected through the second bearing 73, which changes the original sliding friction into rolling friction, thereby reducing the friction force and achieving a wear-resistant effect. This solves the problem that the two ends of the spring in the existing centrifugal block assembly are generally directly snapped to the centrifugal block and the pin, which is prone to wear and reduces the service life.

[0026] Example 4: Figure 1 and Figure 2 As shown, a central hole 8 is provided at the center of the outer surface of the turntable 1, and a spline sleeve 9 is fixedly connected through the center hole 8. A retaining tooth 10 is fixedly connected to one side of the outer surface of the centrifugal block 4 to facilitate the realization of the basic functions of the centrifugal block assembly.

[0027] Working principle: When the centrifuge block assembly is in use, one end of the centrifuge block 4 is connected to the shaft pin 2 through the first bearing 3, and both ends of the telescopic spring 71 are connected through the second bearing 73. This changes the original sliding friction into rolling friction, thereby reducing friction and achieving a wear-resistant effect. This solves the problem that in existing centrifuge block assemblies, the two ends of the spring are generally directly connected to the centrifuge block and the rotating block in a sliding connection, which is prone to wear and reduces service life. In use, rotating the knob 54 drives the screw 53 to rotate, and the rotation of the screw 53 drives the rectangular rod 52 to extend and retract through the thread. This allows for adjustment of the extension and retraction of the telescopic spring 71, thereby adjusting its tension. When the centrifugal block 4 or spring assembly 7 needs to be replaced, the rectangular rod 52 is extended to de-tension the telescopic spring 71. Then, the connecting bolt 610 is rotated to remove the arc plate 66, at which point the fixing cover 62 can be removed, and the spring assembly 7 can be removed. This facilitates the installation and disassembly of the telescopic spring 71, thus solving the problem that the existing centrifugal block assembly has difficulty adjusting the spring force, and that the spring needs to be stretched during installation and disassembly, causing inconvenience in operation.

[0028] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. It will be apparent to those skilled in the art that this utility model is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or basic characteristics of this utility model. Therefore, the embodiments should be considered exemplary and non-limiting in all respects. The scope of this utility model is defined by the appended claims rather than the foregoing description, and thus all variations falling within the meaning and scope of equivalents of the claims are intended to be included within this utility model. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0029] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A wear resistant centrifugal block assembly, which is easy to adjust and replace, comprising a rotating disc (1), characterized in that: Three pins (2) are fixedly connected in a ring array on one side of the outer surface of the turntable (1). A first bearing (3) is fixedly sleeved on the outer surface of the pins (2). A centrifugal block (4) is fixedly sleeved on the outer ring of the first bearing (3). An adjustment mechanism (5) is fixedly installed on the outer surface of the turntable (1) and at one end near the centrifugal block (4). A connecting mechanism (6) is fixedly connected to the end of the centrifugal block (4) away from the pins (2) and the movable end of the adjustment mechanism (5). A spring assembly (7) is installed between two adjacent connecting mechanisms (6). The adjustment mechanism (5) includes a rectangular sleeve (51) fixedly connected to the outer surface of the turntable (1). A rectangular rod (52) is slidably connected inside the rectangular sleeve (51). A screw (53) is rotatably connected through the outer surface of the rectangular sleeve (51). One end of the screw (53) extends into the interior of the rectangular rod (52) and is threadedly connected to the interior of the rectangular rod (52).

2. The wear resistant, easily adjustable and replaceable centrifugal block assembly of claim 1, wherein: One end of the screw (53) extends to the outside of the rectangular sleeve (51), and a knob (54) is fixedly connected to the end of the screw (53) located outside the rectangular sleeve (51).

3. The wear resistant, easily adjustable and replaceable centrifugal block assembly of claim 1, wherein: The connecting mechanism (6) includes a connecting block (61). One side of the connecting block (61) is fixedly connected to one end of the corresponding centrifugal block (4) and rectangular rod (52). A fixing cover (62) is provided on one side of the connecting block (61). Both one side of the connecting block (61) and one side of the fixing cover (62) are semi-circular. Two inserts (63) are symmetrically fixedly connected to one side of the outer surface of the fixing cover (62). Two slots (64) that are slidably connected to the inserts (63) are symmetrically opened on one side of the outer surface of the connecting block (61).

4. The wear resistant, easily adjustable and replaceable centrifugal block assembly of claim 3, wherein: The connecting mechanism (6) further includes an arc-shaped mounting groove (65) on one side of the outer surface of the connecting block (61). An arc-shaped plate (66) is slidably embedded in the arc-shaped mounting groove (65). Insert rods (67) are fixedly connected to both ends of the arc-shaped plate (66). Insert holes (68) that cooperate with the insert rods (67) are opened on the outer surfaces of the connecting block (61) and the insert block (63). A countersunk hole (69) is opened on the outer surface of the arc-shaped plate (66). A connecting bolt (610) is rotatably connected through the countersunk hole (69). One end of the connecting bolt (610) is threadedly connected to the inside of the connecting block (61).

5. The wear resistant, easily adjustable and replaceable centrifugal block assembly of claim 4, wherein: The spring assembly (7) includes a telescopic spring (71), both ends of which are fixedly connected to a connecting rod (72). A second bearing (73) is fixedly sleeved on the outer surface of the connecting rod (72), and the second bearing (73) is located inside the adjacent connecting block (61) and the fixing cover (62).

6. The wear resistant, easily adjustable and replaceable centrifugal pad assembly of claim 1, wherein: A central hole (8) is provided at the center of the outer surface of the turntable (1), and a spline sleeve (9) is fixedly connected through the center hole (8). A retaining tooth (10) is fixedly connected to one side of the outer surface of the centrifugal block (4).

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