A starting clutch device for a lawn mower
By designing a lawn mower start clutch device that includes a clutch housing, a slitting block and a spring, the problem of increasing load of auxiliary equipment during engine start is solved, and the effect of simplifying start, improving fuel efficiency and ensuring safety is achieved.
Patent Information
- Application Number
- CN202421561011.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-03
- Publication Date
- 2025-04-11
- Estimated Expiration
- 2034-07-03
AI Technical Summary
When starting a gasoline engine, auxiliary tools such as pulleys, triangle belts and mow blades increase the load when starting the engine, resulting in insufficient starting rotation and difficulty in starting.
Design a start clutch device for a lawn mower, including a clutch housing, a triangular groove, a clutch sleeve, a bearing, a clutch swing block, a clutch spring and a mowing blade. The device automatically adjusts the power transmission through the cooperation of the friction surface and the spring to avoid high load start.
The start-up process is simplified, fuel efficiency is improved, high load damage is avoided when the engine starts, and the automatic engagement mechanism is used to ensure operation safety and power supply on demand, improving overall working efficiency.
Smart Images
Figure CN222736683U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the technical field of lawn mowers, and in particular relates to a starting clutch device of a lawn mower. Background Art
[0002] When starting a gasoline engine, a small throttle is required to start it. When a pulley, a V-belt, a mowing blade and other auxiliary tools are installed on the engine output shaft, these auxiliary tools will increase the load when the engine is started, resulting in insufficient starting speed, making it difficult to start the engine. Therefore, a starting clutch device for a lawn mower is proposed. Utility Model Content
[0003] The utility model aims to provide a starting clutch device for a lawn mower, aiming to solve the problems raised in the above-mentioned background technology.
[0004] The utility model is implemented in this way: a starting clutch device for a lawn mower includes a clutch housing and also includes:
[0005] A V-belt groove, which is arranged on the clutch housing and is used for installing a V-belt;
[0006] Engine output shaft;
[0007] A clutch sleeve, wherein the clutch sleeve is mounted on an engine output shaft;
[0008] A bearing, wherein the bearing is mounted on the clutch sleeve;
[0009] A clutch block, wherein the clutch block is mounted on a clutch sleeve;
[0010] A clutch spring, wherein the clutch spring is sleeved on the clutch swing block;
[0011] A mowing blade is fixedly connected to the clutch housing.
[0012] Furthermore, the clutch housing has a friction surface inside that contacts the clutch throw block.
[0013] Furthermore, there are a plurality of clutch throw blocks, each of which is provided with a mounting groove, in which a clutch spring is installed.
[0014] Furthermore, the installation groove is adapted to the size of the clutch spring.
[0015] Furthermore, the mowing blade is fixedly connected to the clutch housing via bolts.
[0016] Compared with the prior art, the beneficial effects of the utility model are:
[0017] The mower's starter clutch not only simplifies the start-up process and improves fuel efficiency, but also avoids high-load damage to the engine when starting. In addition, the clutch's automatic engagement mechanism adjusts power transmission according to the engine speed, which not only ensures operational safety, but also realizes power supply on demand, improving overall work efficiency. BRIEF DESCRIPTION OF THE DRAWINGS
[0018] Figure 1 The diagram is a schematic diagram of the structure of a starting clutch device for a lawn mower.
[0019] Figure 2 It is a cross-sectional view of a starting clutch device of a lawn mower.
[0020] In the figure: clutch housing 01, V-belt groove 02, engine output shaft 03, clutch block 04, clutch spring 05, mowing blade 06, bearing 07, clutch sleeve 08. DETAILED DESCRIPTION
[0021] In order to make the purpose, technical solution and advantages of the utility model more clear, the utility model is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the utility model and are not used to limit the utility model.
[0022] The specific implementation of the present utility model is described in detail below in conjunction with specific embodiments.
[0023] like Figure 1 and Figure 2 As shown, a starting clutch device for a lawn mower provided by an embodiment of the utility model includes a clutch housing 01, a V-belt groove 02, an engine output shaft 03, a clutch block 04, a clutch spring 05, a lawn mower blade 06, a bearing 07 and a clutch sleeve 08.
[0024] like Figure 1 and Figure 2 As shown in the figure, as a preferred embodiment of the utility model, the clutch housing 01 is installed at the bottom of the lawn mower, and has a friction surface inside that contacts the clutch block 04. When the clutch block 04 contacts the clutch housing 01, the rotation of the engine output shaft 03 is transmitted to the clutch housing 01 through friction, and then the power is transmitted to the mowing blade 06.
[0025] like Figure 2 As shown, as a preferred embodiment of the utility model, the V-belt groove 02 is arranged on the clutch housing 01 for installing the V-belt. When the clutch is engaged, the V-belt transmits the power of the engine to other working parts.
[0026] like Figure 2As shown in the figure, as a preferred embodiment of the utility model, the engine output shaft 03 is the power output part of the engine, which is connected to the clutch sleeve 08. When the engine speed is low, the engine output shaft 03 will not drive the clutch block 04 to throw away, so the clutch remains in a disengaged state and does not transmit power to the mowing blade 06.
[0027] like Figure 2 As shown in the figure, as a preferred embodiment of the utility model, a clutch sleeve 08 is fixed to the outer side of the engine output shaft 03, and the clutch block 04 is inserted and slidably connected with the clutch sleeve 08. As the speed of the engine output shaft 03 increases, the centrifugal force causes the clutch block 04 to be thrown outward. When the engine speed reaches a certain level, the clutch block 04 contacts the clutch housing 01 and generates friction, thereby engaging the clutch and transmitting power to the mowing blade 06.
[0028] like Figure 2 As shown, as a preferred embodiment of the utility model, the clutch spring 05 is sleeved on the clutch block 04, and the clutch block 04 is provided with a plurality of them, and a mounting groove is provided on the plurality of the clutch blocks 04, and the clutch spring 05 is installed in the mounting groove. The mounting groove is adapted to the size of the clutch spring 05. When the engine is stopped or at a low speed, the clutch spring 05 keeps the clutch block 04 in a non-working position to prevent the clutch block 04 from contacting the clutch housing 01 too early. When the engine speed is high enough, the centrifugal force overcomes the spring force, causing the clutch block 04 to move outward and contact the clutch housing 01.
[0029] like Figure 2 As shown, as a preferred embodiment of the utility model, the mowing blade 06 is fixedly connected to the clutch housing 01 by bolts. When the clutch is engaged, the mowing blade 06 receives power from the engine, starts to rotate and performs mowing work.
[0030] The working principle of the utility model is:
[0031] The starting clutch device of the lawn mower can reduce the starting load of the engine by using a small throttle when starting the lawn mower. This is because the number of revolutions of the engine output shaft 03 cannot reach the number of revolutions required to throw away the clutch block 04. At this time, the clutch housing 01 and the engine output shaft 03 are in a separated state, so no load is added, which helps the engine to start easily. When the lawn mower needs to perform mowing or other operations through a V-belt drive, the operator only needs to increase the throttle (Note: when the lawn mower needs to mow the grass or generate electricity through a V-belt drive, it needs to be performed at a high throttle and high revolutions), which will increase the number of revolutions of the engine output shaft 03, thereby reaching the number of revolutions required to throw away the clutch block 04, so that the clutch block 04 reaches sufficient centrifugal force, is thrown outward and contacts the clutch housing 01, and this contact forms an integral body of the engine output shaft 03 and the clutch housing 01 through friction, so that the mowing blade 06 receives power and starts to rotate at high speed to mow the grass.
[0032] The above are only preferred implementations of the utility model. It should be pointed out that for those skilled in the art, several modifications and improvements can be made without departing from the concept of the utility model. These should also be regarded as the protection scope of the utility model. These will not affect the effect of the implementation of the utility model and the practicality of the patent.
Claims
1. A starting clutch device for a lawn mower, comprising a clutch housing, characterized in that: Also includes: A V-belt groove, which is arranged on the clutch housing and is used for installing a V-belt; Engine output shaft; A clutch sleeve, wherein the clutch sleeve is mounted on an engine output shaft; A bearing, wherein the bearing is mounted on the clutch sleeve; A clutch block, wherein the clutch block is mounted on a clutch sleeve; A clutch spring, wherein the clutch spring is sleeved on the clutch swing block; A mowing blade is fixedly connected to the clutch housing.
2. The starting clutch device of the lawn mower according to claim 1, characterized in that: The clutch housing has a friction surface inside that contacts the clutch throw block.
3. The starting clutch device of the lawn mower according to claim 1, characterized in that: The clutch throw blocks are provided with a plurality of pieces, each of which is provided with a mounting groove, in which a clutch spring is installed.
4. The starting clutch device of the lawn mower according to claim 3, characterized in that: The installation groove is adapted to the size of the clutch spring.
5. The starting clutch device of the lawn mower according to claim 1, characterized in that: The mowing blade is fixedly connected to the clutch housing via bolts.