Improved speed reduction gear sleeve assembly

Abstract

The utility model provides an improved speed reduction gear sleeve, which relates to the technical field of speed reducers and comprises a gear sleeve, a transmission shaft is mounted in the gear sleeve in a sleeved manner, a positioning mechanism is arranged between the gear sleeve and the transmission shaft, a guide groove is arranged in the gear sleeve in a penetrating manner, and the positioning mechanism comprises a guide rod and a groove. The groove is arranged at the upper end of the interior of the gear sleeve, and the guide rod is movably installed between the gear sleeve and the groove in a penetrating mode. After the transmission shaft is inserted into the gear sleeve, a user can drive the guide rod to be inserted into the groove through the threaded block, the guide rod pushes the two push plates towards the two sides through the conical block, the push plates drive the positioning rods to be inserted into the overlapped positioning holes respectively, and therefore positioning work of the gear sleeve and the transmission shaft is achieved. The gear sleeve and the transmission shaft form a whole, the situation that the gear sleeve and the transmission shaft deviate and are separated due to external collision and vibration is avoided, and the overall stability performance is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of reducers, and in particular to an improved reduction gear sleeve assembly. Background Art

[0002] The reduction gear sleeve is a gear accessory for a reducer, usually used to transmit power and reduce speed. When using the reduction gear sleeve, the drive shaft is often inserted into the interior of the reduction gear sleeve, and then the transmission work is realized by cooperating with the gear ring on the outside of the reduction gear sleeve through the drive shaft. However, when the drive shaft is inserted into the interior of the reduction gear sleeve, it is impossible to limit the position between the drive shaft and the reduction gear sleeve. If the reducer collides, it will cause an offset between the drive shaft and the reduction gear sleeve, resulting in incorrect alignment between the drive shaft, the reduction gear sleeve and the gear, reducing the contact area, thereby greatly increasing the overall wear, and causing unstable meshing, noise and vibration. Therefore, we propose an improved reduction gear sleeve assembly to solve the above problems. Utility Model Content

[0003] The main purpose of the utility model is to provide an improved reduction gear sleeve assembly, which solves the problem that when the transmission shaft is inserted into the reduction gear sleeve, it is impossible to limit the position between the transmission shaft and the reduction gear sleeve. If the reducer collides, it will cause an offset between the transmission shaft and the reduction gear sleeve, resulting in incorrect alignment between the transmission shaft, the reduction gear sleeve and the gear, reducing the contact area, thereby greatly increasing the overall wear, and causing unstable meshing, noise and vibration problems.

[0004] In order to achieve the above purpose, the technical solution adopted by the utility model is:

[0005] An improved reduction gear sleeve assembly comprises a gear sleeve, a transmission shaft is installed inside the gear sleeve, a positioning mechanism is provided between the gear sleeve and the transmission shaft, a guide groove is penetrated inside the gear sleeve, the positioning mechanism comprises a guide rod and a groove, the groove is provided at the inner upper end of the gear sleeve, the guide rod is movably penetrated and installed between the gear sleeve and the groove, push plates are movably installed on both sides of the inner part of the groove, the push plates are fitted with the guide rod, positioning rods are respectively installed on the side of the push plate away from the guide rod, and the ends of the positioning rods away from each other are respectively clamped and installed inside the transmission shaft.

[0006] Preferably, the guide groove is configured to be spiral.

[0007] Preferably, a threaded hole is provided at the upper end of the gear sleeve, a threaded block is installed inside the threaded hole through threads, and the lower end of the threaded block is connected to the guide rod.

[0008] Preferably, a through hole is provided between the threaded hole and the groove, the guide rod is movably installed inside the through hole, a conical block is installed at the lower end of the guide rod, and the conical block is movably located inside the through hole and the groove.

[0009] Preferably, auxiliary rods are installed at the front and rear ends of the groove respectively, and the shafts of the auxiliary rods are movably installed in the push plate.

[0010] Preferably, positioning holes are respectively provided between the inner ends of the groove and the transmission shaft, the positioning rods are respectively snap-fitted and installed inside the positioning holes, and springs are respectively sleeved and installed on the outer side of the positioning rod body between the groove and the push plate.

[0011] Compared with the prior art, the utility model has the following beneficial effects:

[0012] (1) In the utility model, after the transmission shaft is inserted into the interior of the gear sleeve, the user can drive the guide rod to be inserted into the interior of the groove through the threaded block, and let the guide rod push the two push plates toward both sides through the conical block, so that the push plates can respectively drive the positioning rods to be inserted into the mutually overlapping positioning holes, so as to realize the positioning of the gear sleeve and the transmission shaft, so that they form a whole, avoid the offset and separation between the gear sleeve and the transmission shaft due to external collision and vibration, and improve the overall stability performance.

[0013] (2) In the utility model, the guide groove is used to realize that during the rotation of the gear sleeve, the lubricating oil can flow inside the gear sleeve along the guide groove, thereby increasing the contact area between the lubricating oil and the gear sleeve, improving the overall heat dissipation efficiency, and better protecting the gear sleeve. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is a schematic diagram of the overall structure of an improved reduction gear sleeve assembly of the utility model;

[0015] Figure 2 This is a front view structural diagram of an improved reduction gear sleeve assembly of the utility model;

[0016] Figure 3 It is a side view structural schematic diagram of an improved reduction gear sleeve assembly of the utility model;

[0017] Figure 4 This is an improved type of reduction gear sleeve assembly of the utility model. Figure 2 Schematic diagram of the cross-section structure at AA in the middle;

[0018] Figure 5 The utility model is an improved type of reduction gear sleeve assembly Figure 3 Schematic diagram of the cross-section structure at BB in the middle;

[0019] Figure 6 The utility model is an improved type of reduction gear sleeve assembly Figure 4 The enlarged structural diagram at C in the middle;

[0020] Figure 7 The utility model is an improved type of reduction gear sleeve assembly Figure 5 Enlarged structural diagram at D in the middle.

[0021] In the figure: 1. gear sleeve; 2. transmission shaft; 3. guide groove; 4. positioning mechanism; 401. threaded hole; 402. threaded block; 403. guide rod; 404. through hole; 405. groove; 406. conical block; 407. push plate; 408. auxiliary rod; 409. positioning rod; 410. positioning hole; 411. spring. DETAILED DESCRIPTION

[0022] The following will be combined with the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0023] like Figures 1 to 7 As shown, an embodiment of the utility model proposes an improved reduction gear sleeve assembly, including a gear sleeve 1, a transmission shaft 2 is installed inside the gear sleeve 1, a positioning mechanism 4 is provided between the gear sleeve 1 and the transmission shaft 2, a guide groove 3 is penetrated inside the gear sleeve 1, the positioning mechanism 4 includes a guide rod 403 and a groove 405, the groove 405 is arranged at the inner upper end of the gear sleeve 1, the guide rod 403 is movably penetrated and installed between the gear sleeve 1 and the groove 405, push plates 407 are movably installed on both sides of the inner part of the groove 405, the push plates 407 are fitted with the guide rod 403, and positioning rods 409 are respectively installed on the side of the push plate 407 away from the guide rod 403, and the ends of the positioning rods 409 away from each other are respectively engaged and installed inside the transmission shaft 2.

[0024] like Figures 4 to 7As shown, in another embodiment of the utility model, the guide groove 3 is set to a spiral shape, a threaded hole 401 is provided at the upper end of the gear sleeve 1, a threaded block 402 is installed inside the threaded hole 401 through a thread, the lower end of the threaded block 402 is connected to the guide rod 403, a through hole 404 is penetrated between the threaded hole 401 and the groove 405, the guide rod 403 is movably penetrated and installed inside the through hole 404, a conical block 406 is installed at the lower end of the guide rod 403, and the conical block 406 is movably located inside the through hole 404 and the groove 405, auxiliary rods 408 are respectively installed at the front and rear ends of the groove 405, the rod body of the auxiliary rod 408 is respectively movably penetrated and installed inside the push plate 407, positioning holes 410 are respectively penetrated between the inner ends of the groove 405 and the transmission shaft 2, the positioning rods 409 are respectively snap-fitted and installed inside the positioning holes 410, and the outer side of the rod body of the positioning rod 409 located between the groove 405 and the push plate 407 is respectively sleeved and installed with springs 411.

[0025] The spiral guide groove 3 allows the lubricating oil to flow along one end of the guide groove 3 during the rotation of the gear sleeve 1, and allows the lubricating oil to flow inside the gear sleeve 1 through the guide groove 3, thereby increasing the contact area between the lubricating oil and the gear sleeve 1, improving the heat dissipation efficiency of the gear sleeve 1, and extending the service life of the gear sleeve 1;

[0026] After the user inserts the transmission shaft 2 into the gear sleeve 1, the user can insert the guide rod 403 into the through hole 404, and let the guide rod 403 move downward along the through hole 404. Then, when the guide rod 403 enters the groove 405, the guide rod 403 will push the two push plates 407 to both sides through the conical block 406, so that the push plates 407 can squeeze the springs 411 respectively, and at the same time, push the positioning rod 409 to fit into the positioning hole 410, so as to realize the positioning of the gear sleeve 1 and the transmission shaft 2, so that they form a whole. Then, after the threaded block 402 is connected with the threaded hole 401, the threaded block 402 is installed into the threaded hole 401 through the thread, so as to realize the positioning of the guide rod 403 and the push plate 407, so that the connection between the gear sleeve 1 and the transmission shaft 2 is more stable, and the overall stability is improved.

[0027] The auxiliary rod 408 is used to assist in guiding the push plate 407 to move, so as to prevent the push plate 407 from causing the positioning rod 409 to be angularly offset during the movement and unable to be inserted into the positioning hole 410. At the same time, in conjunction with the spring 411, when it is necessary to separate the gear sleeve 1 and the transmission shaft 2 in the later stage, the push plate 407 and the positioning rod 409 can be controlled to reset, which is more convenient.

[0028] The working principle of this improved reduction gear sleeve assembly:

[0029] When in use, first, after the user inserts the transmission shaft 2 into the interior of the gear sleeve 1, the user can insert the guide rod 403 into the interior of the through hole 404, and let the guide rod 403 move downward along the through hole 404. Then, when the guide rod 403 enters the interior of the groove 405, the guide rod 403 will push the two push plates 407 to both sides through the conical block 406, so that the push plates 407 can squeeze the springs 411 respectively, and at the same time, it also pushes the positioning rod 409 to be stuck in the interior of the positioning hole 410, so as to realize the positioning of the gear sleeve 1 and the transmission shaft 2, so that they form a whole. Then, after the threaded block 402 is connected with the threaded hole 401, the threaded block 402 is installed to the interior of the threaded hole 401 through the thread to realize the positioning of the guide rod 403 and the push plate 407, so that the connection between the gear sleeve 1 and the transmission shaft 2 is more stably achieved, thereby improving the overall stability.

[0030] Obviously, the above embodiments of the present invention are merely examples for clearly illustrating the present invention, and are not limitations on the implementation methods of the present invention. For ordinary technicians in the relevant field, other different forms of changes or modifications can be made on the basis of the above description. It is impossible to list all the implementation methods here. All obvious changes or modifications derived from the technical solution of the present invention are still within the protection scope of the present invention.

Claims

1. An improved reduction gear sleeve assembly, comprising a gear sleeve (1), characterized in that: The gear sleeve (1) is internally sleeved with a transmission shaft (2), a positioning mechanism (4) is provided between the gear sleeve (1) and the transmission shaft (2), a guide groove (3) is provided inside the gear sleeve (1), and the positioning mechanism (4) comprises a guide rod (403) and a groove (405), the groove (405) is provided at the internal upper end of the gear sleeve (1), the guide rod (403) is movably installed between the gear sleeve (1) and the groove (405), push plates (407) are movably installed on both sides of the groove (405), the push plates (407) are fitted with the guide rod (403), and positioning rods (409) are respectively installed on the side of the push plates (407) away from the guide rod (403), and the ends of the positioning rods (409) away from each other are respectively engaged and installed inside the transmission shaft (2).

2. The improved reduction gear sleeve assembly according to claim 1 is characterized in that: The guide groove (3) is configured in a spiral shape.

3. The improved reduction gear sleeve assembly according to claim 1 is characterized in that: The upper end of the gear sleeve (1) is provided with a threaded hole (401), a threaded block (402) is installed inside the threaded hole (401) through threads, and the lower end of the threaded block (402) is connected to a guide rod (403).

4. The improved reduction gear sleeve assembly according to claim 3 is characterized in that: A through hole (404) is provided between the threaded hole (401) and the groove (405), the guide rod (403) is movably installed inside the through hole (404), a conical block (406) is installed at the lower end of the guide rod (403), and the conical block (406) is movably located inside the through hole (404) and the groove (405).

5. The improved reduction gear sleeve assembly according to claim 1 is characterized in that: Auxiliary rods (408) are respectively installed at the front and rear ends of the groove (405), and the rod bodies of the auxiliary rods (408) are movably installed in the push plate (407).

6. The improved reduction gear sleeve assembly according to claim 1 is characterized in that: Positioning holes (410) are respectively provided between the two ends of the interior of the groove (405) and the transmission shaft (2), and the positioning rods (409) are respectively mounted in the interior of the positioning holes (410), and springs (411) are respectively sleeved and installed on the outside of the rod body of the positioning rod (409) located between the groove (405) and the push plate (407).

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