Transmission gear with adjustable gear clearance

Abstract

The utility model discloses a transmission gear with an adjustable gear clearance, which relates to the technical field of gears and comprises a main body, a driving gear and a transmission gear are mounted above the main body, sliding grooves are arranged on two sides of the main body, limiting blocks and rolling beads are mounted in grooves inside the sliding grooves, a fixing frame is mounted at the bottom of the transmission gear, and the fixing frame is fixed on the main body. The front side of the fixing frame is provided with a telescopic rod and a spring, the rear side of the fixing frame is provided with a positioner and a threaded rod, and the tail part of the threaded rod is provided with a handle and a protector. The transmission gear has the advantages that the telescopic rod and the spring are arranged on the front side of the fixing frame, so that the transmission gear has self-adaptive adjustment capability, and abrasion, noise and energy loss are reduced; and meanwhile, the rolling beads are uniformly arranged in the groove in the bottom of the fixing frame and fixed through the limiting blocks, when the fixing frame is moved, the moving is smoother through the rolling beads, hard friction between the fixing frame and the sliding grooves is avoided, and the abrasion degree of parts is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of gears, in particular to a transmission gear with adjustable gear clearance. Background Art

[0002] Currently, in the field of mechanical transmission, most transmission gears are designed with a fixed structure. These transmission gears mesh closely with each other to complete the key transmission function of power transmission.

[0003] After searching, the applicant found that a Chinese patent disclosed "a transmission gear with adjustable gear clearance", and its publication (announcement) number is "CN221880199U". The patent mainly arranges a threaded rod, a limiting wheel and a limiting rod. A limiting hole is provided on the surface of the limiting wheel, which corresponds to the insertion rod on the limiting rod. When the insertion rod is inserted into the limiting hole, the limiting wheel stops rotating, causing the threaded rod to stop rotating along with it, which can avoid the slide from deflecting. By arranging a spring, a telescopic rod and a limiting block, the elastic force of the spring can restore the limiting block to one side of the through slot, and the limiting rod is extended when the limiting rod is pulled. The retracted rod is extended so that the limit rod can be pulled outward normally, which can change the position between the insertion rod and the limit hole on the limit rod, realize the connection and separation between the insertion rod and the limit hole, and ensure that the limit wheel can stop rotating or rotate normally. No additional installation and disassembly are required, and the operation is very convenient. However, when the device is in a complex working condition, the gear clearance will change slightly, and the device cannot make adaptive adjustments to this. In addition, the device will produce hard friction during movement. These situations will affect the service life of the device. For this reason, we propose a transmission gear with adjustable gear clearance. Utility Model Content

[0004] The purpose of the utility model is to provide a transmission gear with adjustable gear clearance.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solution: a transmission gear with adjustable gear clearance, comprising a main body, a driving gear and a transmission gear installed on the top of the main body, sliding grooves are opened on both sides of the main body, and limit blocks and rolling balls are installed in the grooves inside the sliding grooves, a fixing frame is installed at the bottom of the transmission gear, a telescopic rod and a spring are installed on the front side of the fixing frame, a locator and a threaded rod are installed on the rear side of the fixing frame, and a handle and a safety device are installed at the tail of the threaded rod.

[0006] As a further solution of the present invention: one side of the telescopic rod is connected to the front side of the fixing frame, the other side of the telescopic rod is connected to the front side of the sliding slot, springs are provided around the telescopic rod, threaded holes are provided on both sides of the rear of the main body, the threaded rod is connected to the locator through the threaded holes, a safety hole is provided at the tail of the threaded rod, and the safety device is installed in the safety hole.

[0007] As a further solution of the present invention: a groove is opened in the middle position of the bottom of the sliding groove, and limit blocks are installed on both sides of the groove. Rolling balls are evenly arranged inside the groove and at the bottom of the limit blocks. Sliding brackets are installed on both sides of the fixed frame, and the sliding brackets are connected to the rolling balls.

[0008] As a further solution of the present invention: a card slot is opened in the middle of the driving gear and the transmission gear, and matching card blocks are installed on the front side of the main body and the fixing frame, and the driving gear and the transmission gear are firmly installed above the card blocks by screws.

[0009] As a further solution of the present invention: the driving gear is mounted with a driving rod via a clamping block, and the transmission gear is mounted with a transmission rod via a clamping block.

[0010] As a further solution of the present invention: installers are installed on both sides of the main body, and a mounting hole is provided in the middle of the installer.

[0011] By adopting the above technical solution, compared with the prior art, the beneficial effects of the present invention are:

[0012] 1. The utility model uses a telescopic rod and a spring installed on the front side of the fixed frame. This design enables the transmission gear to have adaptive adjustment capabilities during operation. When the machine is running, various complex working conditions during the operation process may cause slight changes in the gear clearance. At this time, the combination of the spring and the telescopic rod can automatically adapt to such changes, ensuring that the transmission gear always remains in the appropriate position, effectively compensating for clearance fluctuations caused by external factors, reducing wear, noise and energy loss caused by changes in gear clearance, and improving the working efficiency and service life of the entire transmission system.

[0013] 2. The utility model evenly arranges rolling balls in the groove at the bottom of the fixed frame and uses limit blocks to place them in the groove. Compared with existing devices on the market, when the fixed frame needs to be moved, the rolling balls can make the movement of the fixed frame smoother and more stable, effectively avoiding hard friction between the fixed frame and the sliding groove, which not only reduces the wear of the components but also extends the service life of the equipment.

[0014] Other advantages, objectives and features of the present invention will be described in part in the following description and will be apparent to those skilled in the art based on an examination of the following or may be learned from the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is an overall schematic diagram of an embodiment of the present utility model;

[0016] Figure 2 This is a schematic diagram of the bottom of an embodiment of the present utility model;

[0017] Figure 3 This is a schematic diagram of the sliding groove in the embodiment of the utility model;

[0018] Figure 4 In the embodiment of the present utility model Figure 3 Schematic diagram of A;

[0019] Figure 5 This is a schematic diagram of the internal opening in an embodiment of the present utility model;

[0020] Figure 6 In the embodiment of the present utility model Figure 5 Schematic diagram of B;

[0021] Figure 7 It is a cross-sectional schematic diagram in an embodiment of the present utility model.

[0022] In the figure: 1. Main body; 11. Sliding groove; 2. Driving gear; 2001. Driving rod; 3. Transmission gear; 3001. Transmission rod; 31. Fixing frame; 3101. Sliding bracket; 32. Telescopic rod; 3201. Spring; 33. Positioner; 3301. Threaded rod; 3310. Handle; 3311. Safety device; 4. Limit block; 41. Rolling ball; 5. Slot; 51. Block; 6. Installer; 61. Mounting hole. DETAILED DESCRIPTION

[0023] The specific embodiments of the present invention will be further described below in conjunction with the accompanying drawings. It should be noted that the description of these embodiments is used to help understand the present invention, but does not constitute a limitation of the present invention.

[0024] In addition, the technical features involved in the various embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other.

[0025] Please see the attached Figure 1 -Attached Figure 7The utility model discloses a transmission gear with adjustable gear clearance, including a main body 1, on which a driving gear 2 and a transmission gear 3 are carefully installed. Sliding grooves 11 are symmetrically provided on both sides of the main body 1. A limiting block 4 and a rolling ball 41 are installed in the groove inside the sliding groove 11. The limiting block 4 can place the rolling ball 41 in the groove to prevent the rolling ball 41 from leaking out. At the same time, a sliding bracket 3101 is provided above the rolling ball 41 and between the two limiting blocks 4. A fixing frame 31 is installed at the bottom of the transmission gear 3. This fixing frame 31 is an important supporting structure for the stable operation of the entire transmission gear 3. A telescopic rod 32 and a spring 3201 are installed on the front side of the fixing frame 31. When complex working conditions occur during the operation of the equipment, resulting in slight changes in the gear clearance, they can automatically adjust according to the actual situation. Adjustment ensures that the transmission gear 3 is always in the appropriate position, thereby effectively compensating for the clearance fluctuation caused by external factors, and further reducing the wear, noise and energy loss caused by changes in the gear clearance. A positioner 33 and a threaded rod 3301 are installed on the rear side of the fixed frame 31. The positioner 33 can accurately locate the position of the transmission gear 3, and the threaded rod 3301 can adjust the position of the transmission gear 3 by rotation, thereby realizing precise adjustment of the gear clearance. At the tail of the threaded rod 3301, a handle 3310 for easy operation and a reliable safety device 3311 are installed. The handle 3310 facilitates the operator to rotate the threaded rod 3301, and the safety device 3311 can ensure that after the position is adjusted, the threaded rod 3301 will not rotate due to unexpected circumstances, thereby ensuring the stability of the entire device.

[0026] In the first embodiment, one side of the telescopic rod 32 is connected to the front side of the fixing frame 31, and the other side of the telescopic rod 32 is connected to the front side of the sliding groove 11. A spring 3201 is provided around the telescopic rod 32. Threaded holes are provided on both sides of the rear of the main body 1. The threaded rod 3301 passes through the threaded holes and is connected to the locator 33. A safety hole is provided at the tail of the threaded rod 3301. The safety device 3311 is installed in the safety hole. A groove is provided in the middle of the bottom of the sliding groove 11. Limit blocks 4 are installed on both sides of the groove. Rolling balls 41 are evenly provided inside the groove and at the bottom of the limit blocks 4. Sliding brackets 3101 are installed on both sides of the fixing frame 31, and the sliding brackets 3101 are connected to the rolling balls 41.

[0027] Specifically, one side of the telescopic rod 32 is connected to the front side of the fixing frame 31, and the other side of the telescopic rod 32 is connected to the front side of the sliding groove 11, connecting the two key parts of the fixing frame 31 and the sliding groove 11. Springs 3201 are arranged around the telescopic rod 32. When there are slight changes in the operation of the equipment, the spring 3201 will flexibly expand and contract according to the force conditions, and cooperate with the telescopic rod 32 to jointly maintain the stability and functionality of the entire structure. Threaded holes are provided on both sides of the rear of the main body 1. The threaded rod 3301 passes through the threaded holes and is connected to the positioner 33, so that the threaded rod 3301 can be prevented from deviating when adjusting the position of the transmission gear 3. , and a safety hole is provided at the tail of the threaded rod 3301. The safety device 3311 is installed in the safety hole, which can effectively prevent unnecessary rotation during the operation of the equipment, thereby ensuring the accuracy of the position of the transmission gear 3 and the stability of the entire device. A groove is opened in the middle position of the bottom of the sliding groove 11, and limit blocks 4 are installed on both sides of the groove. Inside the groove, and at the bottom of the limit blocks 4, rolling balls 41 are evenly provided. Sliding brackets 3101 are installed on both sides of the fixed frame 31, and the sliding brackets 3101 are connected to the rolling balls 41. When the fixed frame 31 needs to move, the rolling balls 41 can effectively reduce friction and make the movement process smoother.

[0028] In the second embodiment, a card slot 5 is provided in the middle of the driving gear 2 and the transmission gear 3. A matching card block 51 is installed on the front side of the main body 1 and the fixing frame 31. The driving gear 2 and the transmission gear 3 are firmly mounted on the top of the card block 51 by screws. The driving gear 2 is mounted with a driving rod 2001 through the card block 51, and the transmission gear 3 is mounted with a transmission rod 3001 through the card block 51. Installers 6 are installed on both sides of the main body 1, and a mounting hole 61 is provided in the middle of the installer 6.

[0029] Specifically, a slot 5 is provided between the driving gear 2 and the transmission gear 3, and matching blocks 51 are installed on the front side of the main body 1 and the fixing frame 31. These blocks 51 can be connected to the slots 5 of the driving gear 2 and the transmission gear 3. The driving gear 2 and the transmission gear 3 are firmly installed on the top of the blocks 51 by screws to ensure that the gears will not loosen or shift during the operation of the equipment, thereby ensuring the stability and accuracy of the transmission. The driving gear 2 is installed with a driving rod 2001 through the blocks 51. Similarly, the transmission gear 3 is also installed with a transmission rod 3001 through the blocks 51. In addition, installers 6 are installed on both sides of the main body 1, and a mounting hole 61 is provided in the middle position of the installer 6. The entire device can be installed on the corresponding mechanical equipment through the installer 6 and the mounting hole 61 to ensure its stable position during operation.

[0030] Working principle:

[0031] First, after the equipment is running, when the gap between the driving gear 2 and the transmission gear 3 changes slightly due to changes in complex working conditions such as temperature and load, the telescopic rod 32 and the spring 3201 on the front side of the fixed frame 31 work together. The spring 3201 expands and contracts according to the change of external force, and the telescopic rod 32 works accordingly, so that the fixed frame 31 drives the transmission gear 3 to automatically adjust its position, compensate for the gap fluctuation, reduce wear, noise and energy loss, ensure stable and accurate transmission, and allow the system to continue to operate stably. The external power is transmitted to the driving gear 2 through the driving rod 2001. The driving gear 2 and the transmission gear 3 are firmly installed through the slot 5, the block 51 and the screws. When the driving gear 2 rotates, it engages with the transmission gear 3 and continues to transmit the power through the transmission rod 3001. When the transmission gear 3 is in the right position, the operator rotates the handle 3310 at the end of the threaded rod 3301. Since the threaded rod 3301 is connected to the threaded hole of the main body 1 and the locator 33, the fixed frame 31 is pushed to move when it is rotated. After the adjustment is completed, the safety device 3311 in the safety hole at the end of the threaded rod 3301 prevents it from rotating accidentally, ensuring the accurate position of the transmission gear 3 and the stability of the device. When the fixed frame 31 moves, the rolling ball 41 in the groove at the bottom of the sliding groove 11 is restricted by the limit blocks 4 on both sides and is connected to the sliding brackets 3101 on both sides of the fixed frame 31. When the fixed frame 31 moves, the sliding bracket 3101 slides on the rolling ball 41, converting the sliding friction into rolling friction, reducing friction, and extending the life of the equipment. At this point, the entire workflow ends.

[0032] The above-mentioned front, back, left, right, up and down are all based on the Figure 1 As a benchmark, according to the person's observation perspective, the side of the device facing the observer is defined as the front, the left side of the observer is defined as the left, and so on.

[0033] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the scope of protection of the present invention.

[0034] The embodiments of the present invention are described in detail above with reference to the accompanying drawings, but the present invention is not limited to the described embodiments.

[0035] For those skilled in the art, it is possible to make various changes, modifications, substitutions and variations to these embodiments without departing from the principles and spirit of the present invention, and they still fall within the scope of protection of the present invention.

Claims

1. A transmission gear with adjustable gear clearance, comprising a main body (1), a driving gear (2) and a transmission gear (3) mounted above the main body (1), characterized in that: Sliding grooves (11) are provided on both sides of the main body (1), and a limit block (4) and a rolling ball (41) are installed in the groove inside the sliding groove (11). A fixing frame (31) is installed at the bottom of the transmission gear (3), a telescopic rod (32) and a spring (3201) are installed on the front side of the fixing frame (31), a positioner (33) and a threaded rod (3301) are installed on the rear side of the fixing frame (31), and a handle (3310) and a safety device (3311) are installed at the tail of the threaded rod (3301).

2. The transmission gear with adjustable gear clearance according to claim 1, characterized in that: One side of the telescopic rod (32) is connected to the front side of the fixing frame (31), and the other side of the telescopic rod (32) is connected to the front side of the sliding groove (11). Springs (3201) are provided around the telescopic rod (32). Threaded holes are provided on both sides of the rear of the main body (1). The threaded rod (3301) passes through the threaded holes and is connected to the positioner (33). A safety hole is provided at the tail of the threaded rod (3301), and the safety device (3311) is installed in the safety hole.

3. The transmission gear with adjustable gear clearance according to claim 1, characterized in that: A groove is provided at the middle position of the bottom of the sliding groove (11), and limit blocks (4) are installed on both sides of the groove. Rolling balls (41) are evenly provided inside the groove and at the bottom of the limit blocks (4). Sliding brackets (3101) are installed on both sides of the fixing frame (31), and the sliding brackets (3101) are connected to the rolling balls (41).

4. The transmission gear with adjustable gear clearance according to claim 1, characterized in that: A card slot (5) is provided in the middle of the driving gear (2) and the transmission gear (3); a card block (51) matching the card slot is installed on the front side of the main body (1) and the fixing frame (31); and the driving gear (2) and the transmission gear (3) are firmly installed above the card block (51) by screws.

5. The transmission gear with adjustable gear clearance according to claim 1, characterized in that: The driving gear (2) is mounted with a driving rod (2001) via a clamping block (51), and the transmission gear (3) is mounted with a transmission rod (3001) via a clamping block (51).

6. The transmission gear with adjustable gear clearance according to claim 1, characterized in that: Mounters (6) are installed on both sides of the main body (1), and a mounting hole (61) is provided in the middle of the mounter (6).

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