Assembling tool of combined gear

Abstract

The utility model provides an assembly tool of a combined gear. The assembly tool solves the problems that the quality of the combined gear cannot be guaranteed and the efficiency is low through manual assembly. The supporting seat is arranged on the base, and a positioning groove used for being matched with the straight gear and a first hole used for being matched with a shaft are formed in the top face of the supporting seat; the lifting mechanism is arranged on the base; the pressing block is arranged on the lifting mechanism, and a second hole used for being matched with the shaft is formed in the bottom of the pressing block; the positioning rod is arranged on the base and used for being matched with a tooth groove of the sector gear. The gear shaft is placed in the supporting base to be positioned, a straight gear of the gear shaft is matched with the positioning groove, a mounting shaft is matched with the first hole, then a mounting hole of the sector gear is matched with the mounting shaft, a tooth groove of the sector gear is matched with the positioning rod, it is ensured that the sector gear moves downwards along the positioning rod when pressed downwards, and finally the lifting mechanism drives the pressing block to descend; and the fan-shaped gear is pressed downwards to be matched with the mounting shaft, and gear assembling is completed.

Description

Technical Field

[0001] The utility model relates to the technical field of gear assembly, in particular to an assembly tool for combined gears. Background Art

[0002] One of the speed-changing gears in a gearbox, as shown in Figure 1 includes a sector gear 01, a spur gear 02 and a mounting shaft 03. Since the overall machining of this speed-changing gear is inconvenient, combined gears are generally used to replace the overall speed-changing gear. Considering the comprehensive factors of assembly and machining, the spur gear 02 and the mounting shaft 03 are machined into a gear shaft as a whole, and the sector gear 01 is machined separately, and finally assembled together to form the overall speed-changing gear. At present, the assembly of combined gears generally adopts manual assembly. Manual assembly of gears not only has problems such as insufficient parallelism between gears or improper gear assembly, but also has low work efficiency and high cost. Content of the Utility Model

[0003] To overcome the deficiencies of the background art, the utility model provides an assembly tool for combined gears, which solves the problems that the quality of combined gears cannot be guaranteed and the efficiency is low when assembled manually.

[0004] The technical solution adopted by the utility model is as follows:

[0005] An assembly tool for combined gears, including a base, and further including:

[0006] A support seat is arranged on the base. The top surface of the support seat is provided with a positioning groove for cooperating with the spur gear and a first hole for cooperating with the shaft.

[0007] A lifting mechanism is arranged on the base.

[0008] A pressing block is arranged on the lifting mechanism. The bottom of the pressing block is provided with a second hole for cooperating with the shaft.

[0009] A positioning rod is arranged on the base and is used for cooperating with the tooth groove of the sector gear.

[0010] There are two positioning rods.

[0011] The positioning rod is made of alloy steel.

[0012] The lifting mechanism includes a mounting seat. A lead screw mechanism is installed on the mounting seat. A lifting seat is arranged on the lead screw mechanism. The pressing block is installed at the bottom of the lifting seat. The lead screw mechanism is equipped with a handle for driving the lifting seat to lift and lower.

[0013] A guiding groove is arranged on the mounting seat. The lifting seat is provided with a protruding portion for cooperating with the guiding groove.

[0014] A buffer pad is arranged at the bottom of the positioning groove.

[0015] The beneficial effects of the present utility model are as follows:

[0016] The gear shaft is placed into the support base for positioning, enabling the spur gear of the gear shaft to cooperate with the positioning groove, and the mounting shaft to cooperate with the first hole. Then, the mounting hole of the sector gear is fitted with the mounting shaft, and the tooth groove of the sector gear is engaged with the positioning rod, ensuring that when the sector gear is pressed down, it moves downward along the positioning rod. Finally, the lifting mechanism drives the pressing block to descend, pressing down the sector gear to cooperate with the mounting shaft, completing the assembly of the gear. This device can ensure the quality of the assembled gear and improve work efficiency at the same time. Description of the Drawings

[0017] Figure 1 is a schematic diagram of a speed change gear.

[0018] Figure 2 is the intention of the present utility model.

[0019] Figure 3 is a schematic cross-sectional view of the support base of the present utility model.

[0020] Figure 4 is a schematic diagram of the cooperation between the pressing block and the lifting seat of the present utility model.

[0021] Sector gear 01, spur gear 02, mounting shaft 03, base 1, support base 2, positioning groove 3, first hole 4, lifting mechanism 5, mounting seat 51, lead screw mechanism 52, lifting seat 53, handle 54, pressing block 6, second hole 7, positioning rod 8, guiding groove 9, protruding portion 10, buffer pad 11. Detailed Embodiment

[0022] The present utility model will be further described below in conjunction with the drawings and embodiments:

[0023] In the embodiment, as Figure 2 , Figure 3 , Figure 4 shown, the assembly tooling for the combined gear includes a base 1, and further includes:

[0024] A support base 2 is provided on the base 1. The top surface of the support base 2 is provided with a positioning groove 3 for cooperating with the spur gear 02 and a first hole 4 for cooperating with the mounting shaft 03;

[0025] A lifting mechanism 5 is provided on the base 1;

[0026] A pressing block 6 is provided on the lifting mechanism 5. The bottom of the pressing block 6 is provided with a second hole 7 for cooperating with the mounting shaft 03;

[0027] A positioning rod 8 is provided on the base 1 for cooperating with the tooth groove of the sector gear 01.

[0028] Place the gear shaft into the support base 2 for positioning, so that the spur gear 02 of the gear shaft fits with the positioning groove 3, the mounting shaft 03 fits with the first hole 4, then the mounting hole of the sector gear 01 fits with the mounting shaft 03, and the tooth groove of the sector gear 01 fits with the positioning rod 8. Ensure that when the sector gear 01 is pressed down, it moves downward along the positioning rod 01. Finally, the lifting mechanism 5 drives the pressing block 6 to descend, presses down the sector gear 01 to fit with the mounting shaft 03, and completes the assembly of the gear; this device can ensure the quality of the combined gear after installation and improve work efficiency at the same time.

[0029] In the embodiment, as Figure 2 , Figure 3 shown, there are two positioning rods 8. The two positioning rods 8 can limit and stabilize the sector gear 01, and the sector gear 01 is not likely to deviate in angle.

[0030] In the embodiment, the positioning rod 8 is made of alloy steel. The positioning rod 8 has good strength and hardness, is not easy to deform and bend, and ensures the service life.

[0031] In the embodiment, as Figure 2 shown, the lifting mechanism 5 includes a mounting seat 51, a screw mechanism 52 is installed on the mounting seat 51, a lifting seat 53 is provided on the screw mechanism 52, the pressing block 6 is installed at the bottom of the lifting seat 53, and the screw mechanism 52 is equipped with a handle 54 for driving the lifting seat 53 to lift and lower. By rotating the handle 54, the lifting seat 53 can drive the pressing block 6 to move up and down, which is simple and convenient. The handle 54 can be installed at one end of the screw in the screw mechanism 52 or on one side of the lifting seat 53. By connecting the worm and worm gear to cooperate with the screw mechanism 52, the lifting and lowering of the lifting seat 53 is realized.

[0032] In the embodiment, as Figure 2 shown, a guide groove 9 is provided on the mounting seat 51, and a convex portion 10 for cooperating with the guide groove 9 is provided on the lifting seat 53. Ensure the linearity of the up and down movement of the lifting seat 53 and guarantee the assembly quality of the sector gear 01.

[0033] In the embodiment, as Figure 3 shown, a buffer pad 11 is provided at the bottom of the positioning groove 3. Prevent the bottom surface of the spur gear 02 from acting on the bottom surface of the limit groove 3 when the pressing block 6 presses down the sector gear 01, causing damage to the periphery of the bottom surface of the spur gear 02.

[0034] Obviously, the above embodiments of the present utility model are merely examples for illustrating the present utility model, rather than limitations on the implementation manners of the present utility model. For those of ordinary skill in the art, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to list all implementation manners here. And these obvious changes or modifications derived from the essential spirit of the present utility model still fall within the protection scope of the present utility model.

Claims

1. An assembly tool for a combined gear, comprising a base (1), characterized in that: Also includes: A support seat (2) is arranged on the base (1), and a top surface of the support seat (2) is provided with a positioning groove (3) for cooperating with the spur gear (02) and a No. 1 hole (4) for cooperating with the mounting shaft (03); A lifting mechanism (5) is arranged on the base (1); A pressing block (6) is arranged on the lifting mechanism (5), and a second hole (7) for cooperating with the mounting shaft (03) is provided at the bottom of the pressing block (6); A positioning rod (8) is arranged on the base (1) and is used to cooperate with the tooth groove of the sector gear (01).

2. The assembly tool for combined gears according to claim 1, characterized in that: There are two positioning rods (8).

3. The assembly tool for combined gears according to claim 1, characterized in that: The positioning rod (8) is made of alloy steel.

4. The assembly tool for combined gears according to claim 1, characterized in that: The lifting mechanism (5) comprises a mounting seat (51), the mounting seat (51) being mounted with a screw mechanism (52), a lifting seat (53) being provided on the screw mechanism (52), the pressing block (6) being mounted at the bottom of the lifting seat (53), and the screw mechanism (52) being provided with a handle (54) for driving the lifting seat (53) to move up and down.

5. The assembly tool for combined gears according to claim 4, characterized in that: The mounting seat (51) is provided with a guide groove (9), and the lifting seat (53) is provided with a protrusion (10) for cooperating with the guide groove (9).

6. The assembly tool for combined gears according to claim 1, characterized in that: A buffer pad (11) is provided at the bottom of the positioning groove (3).

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