Driven wheel

Abstract

The utility model relates to the technical field of REPS steering gears, in particular to a driven wheel which comprises a lead screw and a wheel set unit, the wheel set unit comprises a circular shaft, a first baffle ring, a second baffle ring, a connecting rib, a fixing bolt, a pressing ring and an installation assembly, the circular shaft is provided with a stepped groove, the stepped groove is in sliding fit with the second baffle ring, and the pressing ring is in sliding connection with the circular shaft. The pressing ring, the second baffle ring and the circular shaft are each provided with a first threaded hole, the first threaded holes are in threaded fit with the fixing bolts, during use, a connecting belt penetrates through the circular shaft to make contact with the first baffle ring, then the second baffle ring slides to be matched with the stepped groove, then the pressing ring is covered, the fixing bolts are screwed, and the mounting assembly is used for supporting connecting ribs. The pressure borne by the connecting ribs is shared, through a limiting area formed by the first baffle ring and the second baffle ring, transverse shifting and disengaging of the connecting belt are avoided, normal work of the steering gear is guaranteed, and the maintenance cost expenditure of a driver is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of REPS steering gears, in particular to a driven wheel. Background Art

[0002] With the rapid development of intelligent driving technology, in order to avoid excessive torque in the direction of the car caused by different working conditions, which makes it impossible to control the vehicle accurately and effectively, most steering gears are equipped with EPS (Electric Power Steering System). EPS can easily provide different power assistance effects of the electric motor at different vehicle speeds, ensuring that the car is light and flexible when turning at low speeds. According to the coupling position of the motor in the steering gear, the one in which the motor directly applies power assistance to the rack is called REPS rack electric power steering, and the driving wheel on the output end of the motor needs to be connected to the driven wheel with a belt.

[0003] The existing driving wheel is mainly used in conjunction with the screw rod.

[0004] The current driving wheel is easy to move laterally and disengage during the operation of the steering gear, affecting the normal operation of the steering gear and increasing unnecessary economic expenses for the driver. Utility Model Content

[0005] The purpose of the utility model is to provide a driven wheel, aiming to solve the problem that the current driving wheel is easy to move laterally and fall out during the operation of the steering gear, affecting the normal operation of the steering gear and increasing unnecessary economic expenses for the driver.

[0006] To achieve the above-mentioned purpose, the utility model provides a driven wheel, including a screw rod and a wheel assembly unit, the wheel assembly unit including a circular shaft, a first retaining ring, a second retaining ring, a connecting rib, a fixing bolt, a pressure ring and an installation assembly, the circular shaft has an inner rotating hole, and the wheel assembly is arranged on the outer side wall of the screw rod; the inner rotating hole is threadedly engaged with the screw rod, the first retaining ring is fixedly connected to the circular shaft and is located on the outer side wall of the circular shaft, the connecting rib is fixedly connected to the first retaining ring and is located on one side of the first retaining ring, the installation assembly is arranged at one end of the circular shaft, the circular shaft has a stepped groove, the stepped groove is slidingly engaged with the second retaining ring, the pressure ring is slidingly connected to the circular shaft and is located on the outer side wall of the circular shaft, and the pressure ring is in contact with the second retaining ring, the pressure ring, the second retaining ring and the circular shaft respectively have a first threaded hole, and the first threaded hole is threadedly engaged with the fixing bolt.

[0007] When in use, pass the connecting belt through the circular shaft so that it contacts the first retaining ring, then slide the second retaining ring to fit the stepped groove, then cover the pressure ring and tighten the fixing bolt. The mounting assembly is used to support the connecting rib and share the pressure borne by the connecting rib. The restricted area formed by the first retaining ring and the second retaining ring can prevent the connecting belt from moving laterally and falling out, thereby ensuring the normal operation of the steering gear and reducing the maintenance cost expenditure of the driver.

[0008] In which, the mounting assembly includes a side ring, a locking bolt and a latch rod, the side ring contacts the round shaft and is located at one end of the round shaft, the side ring and the round shaft have a second threaded hole, the second threaded hole is threadedly engaged with the locking bolt, the latch rod is fixedly connected to the side ring and is located on one side of the side ring, the connecting rib has a latch hole, and the latch hole is slidably engaged with the latch rod.

[0009] Align the latch rod with the latch hole and insert it, then tighten the locking bolt to share the pressure on the connecting rib, avoid breakage at the root of the first retaining ring, and extend the service life of the second retaining ring.

[0010] Wherein, the mounting assembly further comprises a locking pad, which is slidably connected to the latch rod and is located on the outer side wall of the latch rod, and the locking pad is in contact with the connecting rib.

[0011] The locking washer facilitates the staff to better tighten the locking bolt, which can effectively reduce the workload of the staff.

[0012] Wherein, the first retaining ring has a first arc chamfer.

[0013] The first arc chamfer can remove sharp edges and burrs caused by machining, preventing these sharp parts from scratching users or other objects during use, thereby improving product safety and facilitating the assembly and installation of parts, especially in parts that require close fit or sliding contact, making the assembly process smoother.

[0014] Wherein, the second retaining ring has a second arc chamfer.

[0015] The second arc chamfer can remove sharp edges and burrs caused by machining, preventing these sharp parts from scratching users or other objects during use, thereby improving product safety and facilitating the assembly and installation of parts, especially in parts that require close fit or sliding contact, making the assembly process smoother.

[0016] The utility model provides a driven wheel. When in use, the connecting belt is passed through the circular shaft to make it contact with the first retaining ring, and then the second retaining ring is slid to fit the stepped groove. Thereafter, the pressure ring is covered and the fixing bolt is tightened. The mounting assembly is used to support the connecting rib and share the pressure borne by the connecting rib. The restricted area formed by the first retaining ring and the second retaining ring can prevent the connecting belt from lateral movement and disengagement, thereby ensuring the normal operation of the steering gear and reducing the maintenance cost expenditure of the driver. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art.

[0018] Figure 1 It is a structural schematic diagram of the driven wheel of the utility model.

[0019] Figure 2 It is a front view of the driven wheel of the present utility model.

[0020] Figure 3 It is a sectional view of line AA of the present invention.

[0021] Figure 4 This utility model Figure 3 A magnified view of the local structure at point B.

[0022] Figure 5 This utility model Figure 3 A magnified view of the local structure at point C.

[0023] 101-screw, 102-round shaft, 103-first retaining ring, 104-second retaining ring, 105-connecting rib, 106-fixing bolt, 107-pressure ring, 108-side ring, 109-locking bolt, 110-latch rod, 111-locking washer, 112-first circular chamfer, 113-second circular chamfer, 114-inner rotation hole, 115-step groove, 116-first threaded hole, 117-second threaded hole, 118-latch hole. DETAILED DESCRIPTION

[0024] See also Figures 1 to 5 ,in, Figure 1 This is a schematic structural diagram of the driven wheel of the utility model. Figure 2 This is a front view of the driven wheel of the utility model. Figure 3 This is a sectional view of the AA line of the present invention. Figure 4 This utility model Figure 3 A magnified view of the local structure at point B. Figure 5 This utility model Figure 3 A magnified view of the local structure at point C.

[0025] The utility model provides a driven wheel, including a screw rod 101 and a wheel assembly unit, wherein the wheel assembly unit includes a circular shaft 102, a first retaining ring 103, a second retaining ring 104, a connecting rib 105, a fixing bolt 106, a pressure ring 107 and an installation assembly, wherein the installation assembly includes a side ring 108, a locking bolt 109, a latch rod 110 and a locking washer 111, the first retaining ring 103 has a first circular arc chamfer 112, the second retaining ring 104 has a second circular arc chamfer 113, the circular shaft 102 has an inner rotating hole 114, the circular shaft 102 has a stepped groove 115, the pressure ring 107, the second retaining ring 104 and the circular shaft 102 respectively have a first threaded hole 116, the side ring 108 and the circular shaft 102 have a second threaded hole 117, and the connecting rib 105 has a latch hole 118.

[0026] The wheel group is arranged on the outer wall of the screw rod 101; the circular shaft 102 has an inner rotating hole 114, and the inner rotating hole 114 is threadedly engaged with the screw rod 101; the first retaining ring 103 is fixedly connected to the circular shaft 102 and is located on the outer wall of the circular shaft 102; the connecting rib 105 is fixedly connected to the first retaining ring 103 and is located on one side of the first retaining ring 103; the mounting assembly is arranged at one end of the circular shaft 102; the circular shaft 102 has a stepped groove 115, and the stepped groove 115 is slidingly engaged with the second retaining ring 104; the pressure ring 107 is slidingly connected to the circular shaft 102 and is located on the outer wall of the circular shaft 102, and the pressure ring 107 is in contact with the second retaining ring 104; the pressure ring 107, the second retaining ring 104 and the circular shaft 102 respectively have a first threaded hole 116, and the first threaded hole 116 is threadedly engaged with the fixing bolt 106.

[0027] In this embodiment, when in use, the connecting belt is passed through the circular shaft 102 so that it contacts the first retaining ring 103, and then the second retaining ring 104 is slid to fit the stepped groove 115, and then the pressure ring 107 is covered and the fixing bolt 106 is tightened. The mounting assembly is used to support the connecting rib 105 and share the pressure borne by the connecting rib 105. The restricted area formed by the first retaining ring 103 and the second retaining ring 104 can prevent the connecting belt from moving laterally and falling out, thereby ensuring the normal operation of the steering gear and reducing the maintenance cost expenditure of the driver.

[0028] Furthermore, the side ring 108 contacts the round shaft 102 and is located at one end of the round shaft 102. The side ring 108 and the round shaft 102 have a second threaded hole 117, and the second threaded hole 117 is threadedly engaged with the locking bolt 109. The latch rod 110 is fixedly connected to the side ring 108 and is located on one side of the side ring 108. The connecting rib 105 has a latch hole 118, and the latch hole 118 is slidably engaged with the latch rod 110.

[0029] In this embodiment, the latch rod 110 is aligned with the latch hole 118 and inserted, and then the locking bolt 109 is tightened to share the pressure on the connecting rib 105, avoid the breakage of the root of the first retaining ring 103, and extend the service life of the second retaining ring 104.

[0030] Furthermore, the locking pad 111 is slidably connected to the latch rod 110 and is located on the outer side wall of the latch rod 110 , and the locking pad 111 is in contact with the connecting rib 105 .

[0031] In this embodiment, the locking washer 111 facilitates the staff to better tighten the locking bolt 109, which can effectively reduce the workload of the staff.

[0032] Furthermore, the first retaining ring 103 has a first arc chamfer 112 .

[0033] In this embodiment, the first arc chamfer 112 can remove sharp edges and burrs caused by machining, preventing these sharp parts from scratching users or other objects during use, thereby improving product safety and facilitating assembly and installation between parts, especially in parts that require close fit or sliding contact, making the assembly process smoother.

[0034] Furthermore, the second retaining ring 104 has a second arc chamfer 113 .

[0035] In this embodiment, the second arc chamfer 113 can remove sharp edges and burrs caused by machining, preventing these sharp parts from scratching users or other objects during use, thereby improving product safety and facilitating assembly and installation between parts, especially in parts that require close fit or sliding contact, making the assembly process smoother.

[0036] The above disclosure is only a preferred embodiment of the present application and cannot be used to limit the scope of rights of the present application. Ordinary technicians in this field can understand that all or part of the processes of the above embodiment and equivalent changes made in accordance with the claims of the present application are still within the scope covered by the present application.

Claims

1. A driven wheel, characterized in that: It includes a screw rod and a wheel set unit, wherein the wheel set is arranged on the outer side wall of the screw rod; The wheel assembly unit includes a round shaft, a first retaining ring, a second retaining ring, a connecting rib, a fixing bolt, a pressure ring and an installation assembly. The round shaft has an inner rotating hole, and the inner rotating hole is threadedly engaged with the screw rod. The first retaining ring is fixedly connected to the round shaft and is located on the outer side wall of the round shaft. The connecting rib is fixedly connected to the first retaining ring and is located on one side of the first retaining ring. The installation assembly is arranged at one end of the round shaft. The round shaft has a stepped groove, and the stepped groove is slidingly engaged with the second retaining ring. The pressure ring is slidingly connected to the round shaft and is located on the outer side wall of the round shaft, and the pressure ring is in contact with the second retaining ring. The pressure ring, the second retaining ring and the round shaft respectively have a first threaded hole, and the first threaded hole is threadedly engaged with the fixing bolt.

2. The driven wheel according to claim 1, wherein: The mounting assembly includes a side ring, a locking bolt and a latch rod. The side ring contacts the round shaft and is located at one end of the round shaft. The side ring and the round shaft have a second threaded hole, which is threadedly engaged with the locking bolt. The latch rod is fixedly connected to the side ring and is located on one side of the side ring. The connecting rib has a latch hole, which is slidably engaged with the latch rod.

3. The driven wheel according to claim 2, wherein: The mounting assembly further includes a locking washer, which is slidably connected to the latch rod and is located on the outer side wall of the latch rod, and the locking washer is in contact with the connecting rib.

4. The driven wheel according to claim 3, wherein: The first retaining ring has a first arc chamfer.

5. The driven wheel according to claim 4, characterized in that: The second retaining ring has a second arc chamfer.

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