Heavy-load crowned tooth coupling

Abstract

The utility model discloses a heavy-load crowned tooth coupling which comprises a cylinder body, two ends of the cylinder body are respectively connected with a gear pair, the gear pairs at the two ends are respectively used for connecting an input shaft and an output shaft, and a dustproof device is arranged at a gap of the gear pairs. By the adoption of the structure, the heavy-load crowned tooth coupling has the good effect on the heavy load aspect. Meanwhile, due to the fact that the installation cavity is formed in the end of the gear sleeve, and the first sliding plate and the second sliding plate are arranged in the installation cavity, sealing of the gear pair is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of couplings, and more specifically to a heavy-loaded drum gear coupling. Background Art

[0002] The coupling is an important torque transmission component with high precision, strong load-bearing capacity, high speed, and a certain angular displacement capability. The existing coupling is not ideal in heavy-load effect, and the lubrication and sealing effect at the gear end is not good. Utility Model Content

[0003] The utility model aims to provide a heavy-duty drum gear coupling, in order to solve the technical problems in the background technology.

[0004] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0005] A heavy-duty drum gear coupling comprises a cylinder, both ends of which are connected with gear pairs, the gear pairs at both ends are respectively used to connect an input shaft and an output shaft, and a dustproof device is provided at the gap of the gear pairs.

[0006] In some embodiments, the gear pair includes a gear and a gear sleeve, the gear sleeve is installed on both sides of the cylinder, the gear is installed in the gear sleeve, the input shaft at one end is connected to the gear through a locking unit; the output shaft at the other end is connected to the gear at the other end through a locking unit.

[0007] In some embodiments, the gear sleeve is provided with an annular limiting cover at one end away from the cylinder body for axially limiting the gear.

[0008] In some embodiments, an annular baffle is provided at the end of the gear sleeve, and the annular baffle and the annular limit cover form an installation cavity, in which a first slide plate and a second slide plate having a step groove and cooperating with each other are provided, a first sealing ring is provided between the first slide plate and the second slide plate, and a second sealing ring is provided between the first slide plate and the annular limit cover.

[0009] In some embodiments, the gear sleeve is provided with a limiting boss, a bayonet, a pressure plate and a spring retaining ring for a hole at the end away from the annular limiting cover. The pressure plate is arranged on the limiting boss. A third sealing ring is provided between the pressure plate and the limiting boss for sealing the end of the gear sleeve. The spring retaining ring for the hole is arranged in the bayonet for fixing the pressure plate.

[0010] In some embodiments, a clamping platform is provided on one side of the gear close to the cylinder, and an end cover is provided inside the clamping platform to prevent grease from entering the input end.

[0011] In some embodiments, the locking unit includes a locking disk and a wedge block. The locking disk is sleeved on the gear. The wedge block is arranged between the locking disk and the input shaft to achieve locking of the gear to the input shaft.

[0012] In some embodiments, the dustproof device includes a rubber dustproof sleeve and a throat clamp, and two sides of the rubber dustproof sleeve are respectively arranged on the gear and the locking plate, and are respectively locked by the throat clamp.

[0013] Compared with the prior art, the utility model has the following technical effects:

[0014] By adopting the structure of the utility model, the heavy-duty drum gear coupling can have a better effect in heavy-duty. At the same time, since the installation cavity is arranged at the end of the gear sleeve, the first slide plate and the second slide plate are arranged in the installation cavity, the sealing of the gear pair is realized. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 is a schematic structural diagram of a heavy-duty drum gear coupling of this embodiment;

[0016] Figure 2 is a partial view of the heavy-duty drum gear coupling of this embodiment;

[0017] Figure 3 Schematic diagram of the oil cup position of the heavy-duty drum gear coupling of this embodiment; DETAILED DESCRIPTION

[0018] In order to make the purpose, technical solutions and advantages of the present application clearer, the technical solutions in the embodiments of the present application will be described in more detail below in conjunction with the drawings in the preferred embodiments of the present application. In the drawings, the same or similar reference numerals throughout represent the same or similar parts or parts with the same or similar functions. The described embodiments are part of the embodiments of the present application, not all of the embodiments. The embodiments described below with reference to the drawings are exemplary and are intended to be used to explain the present application, and should not be construed as limitations on the present application. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present application.

[0019] The embodiments of the present application are described in detail below with reference to the accompanying drawings.

[0020] In the description of this application, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, or it can be an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0021] In the description of the present application, it should be understood that the terms "upper", "lower", "front", "back", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating orientations or positional relationships, are orientations or positional relationships based on the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.

[0022] In addition, the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover a non-exclusive inclusion, for example, a process, method, system, product, or display that includes a series of steps or elements is not necessarily limited to those steps or elements explicitly listed but may include other steps or elements not explicitly listed or inherent to such process, method, product, or display.

[0023] The following will be combined Figure 1-Figure 3 , a heavy-duty drum gear coupling involved in the embodiment of the present application is described in detail. It is worth noting that the following embodiments are only used to explain the present application and do not constitute a limitation on the present application.

[0024] Embodiment 1:

[0025] See also Figure 1-Figure 3 A heavy-duty drum gear coupling comprises: a cylinder 7, both ends of which are connected to a gear pair, the gear pairs at both ends are used to connect the input shaft and the output shaft respectively, and a dustproof device is provided at the gap of the gear pair. The gear pair comprises a gear and a gear sleeve, the gear sleeve is installed on both sides of the cylinder, the gear is installed in the gear sleeve, the input shaft at one end is connected to the gear through a locking unit; the output shaft at the other end is connected to the gear at the other end through a locking unit. The locking unit comprises a locking disk and a wedge, the locking disk is sleeved on the gear, and the wedge is arranged between the locking disk and the input shaft to realize the locking of the input shaft by the gear.

[0026] The utility model has input shafts or output shafts at both ends, and a wedge block 8 is pressed into a locking plate 1 by tightening a bolt M24x80 9, and a gear 2 is tightly pressed onto the input shaft to transmit torque.

[0027] The gear 2 and the gear sleeve 3 of the present application are both forged with alloy steel 42CrMo and are quenched and tempered to a hardness of 240-300HBS. After the gear is finely machined, it is nitrided to improve the contact strength of the tooth surface while also ensuring that the core has sufficient toughness.

[0028] The gear and the gear sleeve form a gear pair, and the gear parameters are module 10, number of teeth 48, pressure angle 20°, and pitch circle diameter 480mm.

[0029] As described above, the utility model precisely fits the tooth sleeve and the cylinder body 7 by means of the reamed hole bolts M24x120 4 (18 in number, strength grade 10.9), washers 5, and nuts M24 6, and transmits torque by the friction between the reamed hole bolts and the end faces.

[0030] In some embodiments, the gear sleeve is provided with an annular limit cover at one end away from the cylinder body, which is used to limit the axial position of the gear. When installing, the gear is installed from the other end of the gear sleeve. An annular baffle 12 is provided at the end of the gear sleeve, and the annular baffle and the annular limit cover form an installation cavity. A first slide plate and a second slide plate having a step groove and cooperating with each other are provided in the installation cavity, a first sealing ring is provided between the first slide plate and the second slide plate, and a second sealing ring is provided between the first slide plate and the annular limit cover.

[0031] The gear sleeve is provided with a limiting boss, a bayonet, a pressure plate 19 and a spring retaining ring 20 for a hole at one end away from the annular limiting cover. The pressure plate is arranged on the limiting boss. A third sealing ring 18 is arranged between the pressure plate and the limiting boss to seal the end of the gear sleeve. The spring retaining ring for a hole is arranged in the bayonet to fix the pressure plate. The compression deformation of the third sealing ring ensures the effective sealing of the right end face of the gear sleeve. A clamping table is provided on the side of the gear close to the cylinder. An end cover is arranged in the clamping table and is pressed with 22 screws to ensure that grease does not enter the input end.

[0032] In the present application, the mounting cavity and the first slide plate 15, the second slide plate 14, the first sealing ring 16, and the second sealing ring 17 constitute a sealing grease structure, and the baffle is fixed by bolts M10x16 13. The first slide plate, the second slide plate, the first sealing ring, and the second sealing ring are combined into a slider group, and the contact end surfaces are coated with grease to ensure that the slider group can slide freely to fill the corresponding gap when the gear sleeve swings or moves, prevent grease leakage, and also prevent external dust from entering.

[0033] The grease adding part of the utility model is arranged on the outer circle of the gear sleeve, so that the grease adding part is close to the gear meshing part to ensure reliable lubrication and also facilitate the filling of grease. The implementation plan is to set opposing oil cups with part number M10x1 23 and fill grease through the oil cups.

[0034] In some embodiments, the dustproof device includes a rubber dustproof sleeve 11 and a throat clamp 10. The two sides of the rubber dustproof sleeve are respectively arranged on the gear and the locking plate, and are respectively locked by the throat clamp. The rubber dustproof sleeve can meet the slight axial movement of the input shaft and can meet the dustproof of the gap between the gear and the locking plate.

[0035] The above description is only a preferred embodiment of the present invention and is used to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A heavy-duty drum gear coupling, characterized in that: include: A cylinder, both ends of which are connected to gear pairs, the gear pairs at both ends are used to connect the input shaft and the output shaft respectively, and a dust prevention device is provided at the gap of the gear pairs; The gear pair includes a gear and a gear sleeve, the gear sleeve is installed on both sides of the cylinder, the gear is installed in the gear sleeve, the input shaft at one end is connected to the gear through a locking unit; the output shaft at the other end is connected to the gear at the other end through a locking unit; The gear sleeve is provided with an annular limiting cover at one end away from the cylinder body, which is used to limit the axial position of the gear; An annular baffle is provided at the end of the gear sleeve, and the annular baffle and the annular limit cover form an installation cavity, and a first slide plate and a second slide plate having a step groove and cooperating with each other are provided in the installation cavity, a first sealing ring is provided between the first slide plate and the second slide plate, and a second sealing ring is provided between the first slide plate and the annular limit cover; The locking unit includes a locking disk and a wedge block. The locking disk is sleeved on the gear. The wedge block is arranged between the locking disk and the input shaft to achieve locking of the gear to the input shaft. The dustproof device comprises a rubber dustproof sleeve and a throat clamp. Two sides of the rubber dustproof sleeve are respectively arranged on the gear and the locking plate and are respectively locked by the throat clamp.

2. A heavy-duty drum gear coupling according to claim 1, characterized in that: The tooth sleeve is provided with a limiting boss, a bayonet, a pressure plate and a spring retaining ring for a hole at the end away from the annular limiting cover. The pressure plate is arranged on the limiting boss. A third sealing ring is arranged between the pressure plate and the limiting boss for sealing the end of the tooth sleeve. The spring retaining ring for the hole is arranged in the bayonet for fixing the pressure plate.

3. A heavy-duty drum gear coupling according to claim 1, characterized in that: A clamping platform is provided on one side of the gear close to the cylinder, and an end cover is provided inside the clamping platform to prevent grease from entering the input end.

Images