A high-precision weighing mechanism for a transmission
By designing an automatic prompting transmission weighing mechanism, the problem of visual fatigue caused by workers reading the weight of parts for a long time was solved, the accuracy and consistency of high-precision parts weights were achieved, and the production quality of transmissions was improved.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- 安徽坤泰车辆动力科技有限公司
- Filing Date
- 2025-06-16
- Publication Date
- 2026-06-09
Smart Images

Figure CN224341026U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of transmission technology, and in particular to a high-precision weighing mechanism for transmissions. Background Technology
[0002] A transmission, also known as a gearbox, is a mechanism used to change the speed and torque from an engine. It can change the transmission ratio between the output shaft and the input shaft in a fixed or progressively increasing manner. A transmission consists of a speed transmission mechanism and a control mechanism, and some cars also have a power output mechanism.
[0003] A search revealed a rear-drive transmission with publication number CN205605775U. Within the cavity formed by the left and right covers being snapped together, an input shaft, an intermediate shaft, and an output shaft are sequentially and parallelly mounted. A motor connection hole is arranged in a circular pattern around the input shaft on the right cover, and a frame mounting hole is arranged in a circular pattern around the output shaft on the same right cover. The frame mounting holes are located on the same circular platform of the right cover, and a first weight-reducing cavity is provided on this platform. The first weight-reducing holes and the frame mounting holes are alternately arranged. The motor connection holes are located on the same boss on the right cover. This boss is symmetrically formed by a large arc-shaped boss and small fan-shaped bosses. The large arc-shaped boss is located on the side away from the output shaft, and the small fan-shaped bosses are located on the side closer to the output shaft. Several second weight-reducing cavities are provided within the bosses. This transmission is small in size, lightweight, simple in structure, low in manufacturing cost, reliable in strength, and easy to install, making it suitable for installation in confined spaces.
[0004] The transmission described in this patent requires the measurement of components during assembly, testing, or quality control. Weighing components during the high-precision transmission manufacturing process is a key quality control measure to ensure product performance, reliability, and consistency.
[0005] The weight difference between the gear set / shaft system should be controlled within 0.1-0.5g to avoid centrifugal imbalance during high-speed operation. The tightening torque is indirectly controlled by weighing.
[0006] However, current weighing devices require staff to read the weight of parts themselves during use, and there is no prompt function. After working for a long time, visual fatigue can easily occur, leading to missed inspections and affecting the quality of work. Utility Model Content
[0007] In response to the technical problems in existing patents, such as the need for operators to manually read the weight of parts during use, the lack of a prompt function, and the resulting visual fatigue after prolonged work leading to missed inspections and affecting work quality, this utility model provides a high-precision weighing mechanism for transmissions.
[0008] The technical solution adopted in this utility model is: a high-precision weighing mechanism for transmissions, comprising:
[0009] A storage base, wherein a storage groove is provided on the top of the storage base, and a storage board is installed inside the storage groove;
[0010] A weighing assembly is installed on the top of the storage plate and is used to weigh the required weight of the parts according to the usage requirements.
[0011] The weighing assembly includes a support structure mounted on top of the storage plate, a placement box mounted on top of the support structure, and a detection structure mounted on one side of the support structure.
[0012] Furthermore, the supporting structure includes a first guide post fixedly welded to the top of the storage plate, a first guide slider slidably sleeved on the outside of the first guide post, a reset spring fused between the bottom of the first guide slider and the top of the storage plate, and a support plate fixedly welded between the first guide sliders.
[0013] Furthermore, the reset spring is sleeved on the outside of the first guide post, and the placement box is fixedly installed on the top of the support plate.
[0014] Furthermore, the detection structure includes a first sensing plate installed on the front side of the support plate, an adjustment member installed on the top of the storage plate, a second sensing plate installed on one side of the adjustment member, and an alarm installed on the top of the storage plate.
[0015] Furthermore, the adjusting component includes a second guide post and a scale plate fixedly welded to the top of the storage plate, a second guide slider slidably sleeved on the outside of the second guide post, and a reading plate fixedly welded to one side of the second guide slider.
[0016] Furthermore, the adjusting component preferably includes a screw rotatably mounted on the top of the storage plate and a threaded plate threadedly engaged with the outside of the screw. The threaded plate is fixedly welded to the other side of the second guide slider, and the second sensing plate is mounted on one side of the threaded plate, with the second sensing plate cooperating with the first sensing plate.
[0017] The beneficial effects of this utility model are:
[0018] 1. By rotating the screw, the screw rotation drives the threaded plate to rise and fall. The threaded plate drives the second guide slider to slide on the second guide post to guide the rise and fall of the threaded plate. The second guide slider drives the reading plate to move, and the threaded plate drives the second sensing plate to move. By adjusting the relative position between the reading plate and the scale plate, the distance between the first sensing plate and the second sensing plate is adjusted, thereby adjusting the weight critical value.
[0019] 2. The first guide slider slides on the first guide post via the support plate. The first guide slider presses the return spring, and the support plate moves the first sensing plate. When the first sensing plate does not contact the second sensing plate, the alarm does not work, meaning the weight of the component being weighed does not meet the requirements. The component is removed, and under the action of the return spring, the box returns to its initial position. A larger component is then replaced until the first sensing plate contacts the second sensing plate. At this point, the alarm works, reminding the staff that the component meets the requirements. This avoids staff having to manually read the weight of the components, which can lead to visual fatigue and missed inspections after prolonged work, thus improving work quality. Attached Figure Description
[0020] Figure 1 This is a three-dimensional structural schematic diagram of the present invention;
[0021] Figure 2 This is a three-dimensional structural diagram of the weighing component in this utility model;
[0022] Figure 3 This is a three-dimensional structural diagram of the detection structure in this utility model.
[0023] The diagram is marked as follows:
[0024] 1. Storage base; 2. Storage board;
[0025] 3. Weighing assembly; 301. Support structure; 3011. First guide post; 3012. First guide slider; 3013. Return spring; 3014. Support plate; 302. Placement box; 303. Detection structure; 3031. First sensing plate; 3032. Adjusting component; 3033. Second sensing plate; 3034. Alarm;
[0026] 4. Second guide post; 5. Scale plate; 6. Second guide slider; 7. Reading plate; 8. Screw; 9. Threaded plate. Detailed Implementation
[0027] In the description of this utility model, it should be noted that the terms "front", "up", "down", "left", "right", "vertical", "horizontal", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.
[0028] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.
[0029] The following is in conjunction with the appendix Figure 1-3 The present invention will be further described below.
[0030] To address the problems existing in the background art, this application proposes the following technical solution:
[0031] A high-precision weighing mechanism for transmissions includes: a storage base 1 and a weighing component 3;
[0032] The top of the storage base 1 has a storage slot, and the storage slot is equipped with a storage plate 2. The storage slot is equipped with a lifting structure, and the storage plate 2 is installed on the lifting structure to facilitate the storage plate 2 to enter the storage base 1.
[0033] like Figure 1-3 As shown, the weighing component 3 is installed on the top of the storage plate 2. The weighing component 3 is used to weigh the parts according to the required weight according to the usage requirements.
[0034] The weighing assembly 3 includes a support structure 301 mounted on the top of the storage plate 2, a placement box 302 mounted on the top of the support structure 301, and a detection structure 303 mounted on one side of the support structure 301.
[0035] Furthermore, the supporting structure 301 includes a first guide post 3011 fixedly welded to the top of the storage plate 2, a first guide slider 3012 slidably sleeved on the outside of the first guide post 3011, a return spring 3013 fused between the bottom of the first guide slider 3012 and the top of the storage plate 2, and a supporting plate 3014 fixedly welded between the first guide slider 3012. The return spring 3013 is sleeved on the outside of the first guide post 3011, and the placement box 302 is fixedly installed on the top of the supporting plate 3014.
[0036] Furthermore, the detection structure 303 includes a first sensing plate 3031 installed on the front side of the support plate 3014, an adjustment member 3032 installed on the top of the storage plate 2, a second sensing plate 3033 installed on one side of the adjustment member 3032, and an alarm 3034 installed on the top of the storage plate 2.
[0037] Furthermore, the adjusting component 3032 includes a second guide post 4 and a scale plate 5 fixedly welded to the top of the storage plate 2, a second guide slider 6 slidably sleeved on the outside of the second guide post 4, and a reading plate 7 fixedly welded to one side of the second guide slider 6.
[0038] Furthermore, the adjusting component 3032 preferably includes a screw 8 rotatably mounted on the top of the receiving plate 2 and a threaded plate 9 threadedly engaged on the outside of the screw 8. The threaded plate 9 is fixedly welded to the other side of the second guide slider 6. The second sensing plate 3033 is mounted on one side of the threaded plate 9. The second sensing plate 3033 cooperates with the first sensing plate 3031. When the first sensing plate 3031 contacts the second sensing plate 3033, the alarm 3034 flashes and sounds. The first sensing plate 3031 and the second sensing plate 3033 are electrically connected to the two poles of the alarm 3034 respectively. The working principle is that the two metal contacts at the bottom of the first sensing plate 3031 and the top of the second sensing plate 3033 are set as simple switches. When they contact each other, current will pass through, forming a closed circuit, and the alarm 3034 will be energized. The energization achieved by the sensing plate is a conventional technical means for those skilled in the art, and its structure and principle will not be described in detail here. It is important to remind the staff that the weight of this component meets the working requirements.
[0039] Working principle: When in use, the lifting structure inside the storage base 1 drives the storage plate 2 to move, and the storage plate 2 drives the weighing component 3 away from the storage slot. When not in use, it enters the storage slot to avoid damage to the weighing component 3 and dust accumulation.
[0040] During weighing, rotating the screw 8 causes the threaded plate 9 to rise and fall. The threaded plate 9 then guides the second guide slider 6 to slide on the second guide post 4, guiding the rise and fall of the threaded plate 9. The second guide slider 6 moves the reading plate 7, and the threaded plate 9 moves the second sensing plate 3033. By adjusting the relative position between the reading plate 7 and the scale plate 5, the distance between the first sensing plate 3031 and the second sensing plate 3033 is adjusted, thereby adjusting the weight threshold. The transmission parts to be weighed are placed inside the placement box 302. As the weight of the placement box 302 increases, the support plate 3014 causes the first guide slider 3012 to slide on the first guide post 3011. The first guide slider 3012 compresses the... The spring 3013 and the support plate 3014 drive the first sensing plate 3031 to move. When the first sensing plate 3031 and the second sensing plate 3033 are not in contact, the alarm 3034 does not work, meaning that the weight of the component being weighed does not meet the usage requirements. The component is removed, and under the action of the return spring 3013, the placement box 302 returns to the initial position. A larger-sized component is then replaced until the first sensing plate 3031 and the second sensing plate 3033 are in contact. At this time, the alarm 3034 works to remind the staff that the component meets the working requirements. This avoids the staff having to read the weight of the component themselves, which can easily lead to visual fatigue and missed inspections after long-term work. This improves work quality and facilitates the assembly of high-precision transmissions.
[0041] All standard parts used in this utility model can be purchased from the market, and irregular parts can be customized according to the description and drawings. The specific connection methods of each part adopt conventional methods such as bolts, rivets, and welding that are mature in the prior art. The machinery, parts and equipment adopt conventional models in the prior art. In addition, the circuit connection adopts conventional connection methods in the prior art, which will not be described in detail here. The contents not described in detail in this specification belong to the prior art known to those skilled in the art.
[0042] Although embodiments of the present invention have been shown and described, the scope of the present invention will be defined by the appended claims and their equivalents for those skilled in the art.
Claims
1. A high-precision weighing mechanism for a transmission, characterized in that, include: Storage base (1), the top of the storage base (1) is provided with a storage groove, and the storage groove is provided with a storage plate (2); Weighing component (3), the weighing component (3) is installed on the top of the storage plate (2), the weighing component (3) is used to weigh the required weight of the parts according to the usage requirements; The weighing component (3) includes a support structure (301) mounted on the top of the storage plate (2), a placement box (302) mounted on the top of the support structure (301), and a detection structure (303) mounted on one side of the support structure (301).
2. The high-precision weighing mechanism for a transmission according to claim 1, characterized in that, The supporting structure (301) includes a first guide post (3011) fixedly welded to the top of the storage plate (2), a first guide slider (3012) slidably sleeved on the outside of the first guide post (3011), a reset spring (3013) fused between the bottom of the first guide slider (3012) and the top of the storage plate (2), and a support plate (3014) fixedly welded between the first guide slider (3012).
3. The high-precision weighing mechanism for a transmission according to claim 2, characterized in that, The reset spring (3013) is sleeved on the outside of the first guide post (3011), and the placement box (302) is fixedly installed on the top of the support plate (3014).
4. The high-precision weighing mechanism for a transmission according to claim 2, characterized in that, The detection structure (303) includes a first sensing plate (3031) installed on the front side of the support plate (3014), an adjustment member (3032) installed on the top of the storage plate (2), a second sensing plate (3033) installed on one side of the adjustment member (3032), and an alarm (3034) installed on the top of the storage plate (2).
5. A high-precision weighing mechanism for a transmission according to claim 4, characterized in that, The adjusting component (3032) includes a second guide post (4) and a scale plate (5) fixedly welded to the top of the storage plate (2), a second guide slider (6) slidably sleeved on the outside of the second guide post (4), and a reading plate (7) fixedly welded to one side of the second guide slider (6).
6. A high-precision weighing mechanism for a transmission according to claim 5, characterized in that, The adjusting component (3032) further includes a screw (8) rotatably mounted on the top of the storage plate (2) and a threaded plate (9) threadedly engaged on the outside of the screw (8). The threaded plate (9) is fixedly welded to the other side of the second guide slider (6). The second sensing plate (3033) is mounted on one side of the threaded plate (9) and cooperates with the first sensing plate (3031).