Long-spacing cold-mounted crowned tooth coupling

Abstract

The utility model relates to a long spacing cold type crowned tooth coupling, which comprises two groups of symmetrically arranged shaft sleeve connecting mechanisms, each group of shaft sleeve connecting mechanism comprises an end cover, an inner tooth shell and an outer tooth shaft sleeve, the inner tooth shell is arranged on the periphery of partial section of the outer tooth shaft sleeve, the end cover is arranged on the outer end face of the inner tooth shell and is detachably connected with the inner tooth shell, and the outer tooth shaft sleeve is arranged on the outer end face of the inner tooth shell. The outer tooth shaft sleeves of the two shaft sleeve connecting mechanisms are connected into a whole, and the innovation points are that each outer tooth shaft sleeve comprises a connecting section and a lengthening section which are connected into a whole, the end part of the connecting section of each outer tooth shaft sleeve is provided with an enclasping assembly for realizing cold assembly of the corresponding shaft sleeve, and each enclasping assembly comprises an inner ring locking disc and an outer ring locking disc; the inner ring locking disc is arranged on the periphery of the end of the connecting section of the outer gear shaft sleeve, and the outer ring locking disc is connected with the inner ring locking disc in a matched mode. The utility model has the long shaft distance transmission requirement and the cold assembly function, so that the disassembly and assembly can be quickly and effectively completed without heating and additionally arranging special disassembly equipment.

Description

Technical Field

[0001] The utility model relates to a coupling, in particular to a long-spacing cold-installed drum-shaped gear coupling. Background Art

[0002] Some existing heavy industry equipment requires coupling products to have the characteristics of large torque transmission capacity, long shaft spacing transmission and easy installation. Ordinary drum gear couplings can meet the requirements of large torque transmission capacity due to their high torque transmission density, but due to their compact structure, they cannot meet the requirements of long shaft spacing transmission. In addition, due to the short length of their shaft sleeves, they often require a large interference fit to transmit torque, and there are great inconveniences in the actual installation and disassembly process.

[0003] Existing technical solutions:

[0004] 1. In order to make the existing ordinary drum gear coupling suitable for transmission with long shaft spacing, it is necessary to add additional intermediate section components on the basis of the coupling structure to meet the technical requirements of long shaft spacing transmission.

[0005] 2. Bushing installation method: hot installation, the temperature needs to be heated to several hundred degrees Celsius, and then the bushing and the connecting shaft are connected.

[0006] 3. Shaft sleeve disassembly method: Special equipment is required to heat it, and it is combined with pulling disassembly or hydraulic disassembly, or even destructive disassembly, to separate the shaft sleeve from the connecting shaft.

[0007] The above-mentioned sleeve installation method or disassembly method has the following disadvantages:

[0008] 1. The existing ordinary drum gear coupling has an additional middle section part, which is not only larger in size, but also more expensive after adding multiple parts. At the same time, it is also necessary to meet the assembly accuracy requirements of each component, which increases the overall assembly difficulty and time efficiency of the product.

[0009] 2. The hot installation method of the shaft sleeve is not only energy-consuming and time-consuming, but also increases the safety risks of on-site operations.

[0010] 3. The removal of the sleeve requires additional preparation of special equipment, which is not only time-consuming and labor-intensive, but also increases the cost of use.

[0011] In summary, the structure of the existing coupling cannot be used for the needs of long-axis spacing transmission, and the sleeve installation method not only increases the difficulty of on-site operability, but also has low work efficiency and high requirements on the professional skills of the operator. At the same time, the sleeve may cause irreversible destructive damage during the installation or disassembly process. Summary of the invention

[0012] The purpose of the utility model is to provide a long-spacing cold-installed drum gear coupling which has both the long-spacing transmission requirement and the cold-installation function, and can quickly and effectively complete the disassembly and assembly without heating and additional configuration of special disassembly equipment.

[0013] In order to achieve the above-mentioned purpose, the technical scheme of the utility model is: a long-pitch cold-installed drum gear coupling, including two sets of symmetrically arranged sleeve connection mechanisms, each set of sleeve connection mechanisms includes an end cover, an inner tooth outer shell and an outer tooth sleeve, the inner tooth outer shell is arranged on the outer periphery of a portion of the outer tooth sleeve, and the inner teeth of the inner tooth outer shell are meshed with the outer teeth of the outer tooth sleeve, the end cover is arranged on the outer end surface of the inner tooth outer shell and is detachably connected thereto, and the end cover is sleeved on the outer periphery of the outer tooth sleeve and forms a sealing connection therewith, and the outer tooth sleeves of the two sets of sleeve connection mechanisms are connected as one, and the innovation lies in:

[0014] The outer gear sleeve of each set of sleeve connection mechanism includes a connecting section and an extension section connected as one body, and the inner holes of the connecting section and the extension section are arranged coaxially.

[0015] The end of the connecting section of the external gear sleeve of each set of sleeve connecting mechanism is provided with a clamping assembly for realizing cold installation of the sleeve, and the clamping assembly includes an inner ring locking plate and an outer ring locking plate. The inner ring locking plate is arranged on the outer periphery of the end of the connecting section of the external gear sleeve, and the outer ring locking plate is cooperatively connected with the inner ring locking plate.

[0016] In the above technical solution, the clamping assembly also includes a reinforced locking disk, which is arranged side by side with the outer ring locking disk and is detachably connected through a fastener, and the reinforced locking disk is arranged on the outer periphery of the inner ring locking disk.

[0017] In the above technical solution, the end of the connecting section of the external gear sleeve has a positioning step, and the inner ring locking disk is arranged on the positioning step of the connecting section.

[0018] In the above technical solution, the inner-tooth outer shell is arranged on the outer periphery of the extended section of the outer-tooth shaft sleeve, and the inner teeth of the inner-tooth outer shell are meshed with the outer teeth of the extended section.

[0019] In the above technical solution, connecting flanges are respectively provided at both ends of the inner tooth outer shell, the connecting flange at one end of the inner tooth outer shell is detachably connected to the end cover through fasteners, and the connecting flange at the other end of the inner tooth outer shell of one set of shaft sleeve connecting mechanisms is detachably connected to the connecting flange at the other end of the inner tooth outer shell of another set of shaft sleeve connecting mechanisms.

[0020] In the above technical solution, the inner tooth outer shells of the two sets of sleeve connection mechanisms are positioned together through a positioning connection mechanism, and the positioning connection mechanism includes a stopper provided on one inner tooth outer shell, and a flange provided on the other inner tooth outer shell and forming a positioning fit with the stopper.

[0021] In the above technical solution, the end cover is sealed with the external gear sleeve via a sealing ring.

[0022] In the above technical solution, the inner gear outer shell is provided with an oil filling hole.

[0023] The positive effect of the utility model is that after adopting the long-spacing cold-installed drum gear coupling of the utility model, since the outer gear shaft sleeve of each set of shaft sleeve connection mechanism of the utility model includes a connecting section and an extension section connected as one body, and the inner holes of the connecting section and the extension section are arranged coaxially, the utility model lengthens the length of the shaft sleeve so that the outer gear shaft sleeve has a connecting section and an extension section connected as one body, replacing the technical solution of the prior art that requires additional intermediate section components when applied to long-spacing transmission, not only reduces the number of components, optimizes the design and cost, but also does not increase the difficulty of assembly, so that it can not only meet the transmission requirements of long-spacing transmission, but also reduce costs and increase efficiency;

[0024] Furthermore, since the end of the connecting section of the external gear sleeve of each set of sleeve connecting mechanism is provided with a clamping assembly for realizing cold installation of the sleeve, the clamping assembly comprises an inner ring locking disc and an outer ring locking disc, the inner ring locking disc is arranged on the outer periphery of the end of the connecting section of the external gear sleeve, and the outer ring locking disc is cooperatively connected with the inner ring locking disc;

[0025] The utility model adds a clamping component to the end of the external gear sleeve, and provides the sleeve with an interference fit to clamp on the shaft by locking the inner ring locking plate and the outer ring locking plate on the external gear sleeve, and transmits torque through the interference fit, successfully realizing the function of the coupling being able to be installed at room temperature while meeting the transmission requirements of long shaft spacing.

[0026] Specifically: ① No need to use special equipment: that is, the disassembly and assembly of the shaft sleeve locking plate of the utility model only requires an ordinary torque wrench, which greatly increases the operability on site and improves efficiency. There is no need to prepare special disassembly equipment, which not only saves time and effort, but also reduces the cost of use. ② No need to heat the shaft sleeve: that is, the installation of the shaft sleeve only needs to be carried out at room temperature, avoiding potential operational safety risks.

[0027] In summary, the utility model realizes the product functions of long shaft spacing transmission and rapid disassembly and assembly at room temperature by lengthening the external gear sleeve and matching the locking disk installation. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 It is a structural schematic diagram of a specific implementation method of the utility model. DETAILED DESCRIPTION

[0029] The present invention is further described below in conjunction with the accompanying drawings and given embodiments, but is not limited thereto.

[0030] like Figure 1 The present invention shows a long-spacing cold-installed drum gear coupling, comprising two sets of symmetrically arranged shaft sleeve connection mechanisms, each set of shaft sleeve connection mechanisms comprising an end cover 1, an inner gear outer shell 2 and an outer gear shaft sleeve 3, the inner gear outer shell 2 is arranged on a partial outer periphery of the outer gear shaft sleeve 3, and the inner teeth of the inner gear outer shell 2 are meshed with the outer teeth of the outer gear shaft sleeve 3, the end cover 1 is arranged on the outer end surface of the inner gear outer shell 2 and is detachably connected thereto, and the end cover 1 is sleeved on the outer periphery of the outer gear shaft sleeve 3 and forms a sealing connection therewith, and the outer gear shaft sleeves 3 of the two sets of shaft sleeve connection mechanisms are connected as a whole,

[0031] The outer gear sleeve 3 of each set of sleeve connection mechanism includes a connecting section 31 and an extension section 32 connected as one body, and the inner holes of the connecting section 31 and the extension section 32 are arranged coaxially.

[0032] The end of the connecting section 31 of the external gear shaft sleeve 3 of each set of shaft sleeve connecting mechanism is provided with a clamping assembly for realizing cold installation of the shaft sleeve, and the clamping assembly 4 includes an inner ring locking plate 41 and an outer ring locking plate 42, and the inner ring locking plate 41 is arranged on the outer periphery of the end of the connecting section 31 of the external gear shaft sleeve 3, and the outer ring locking plate 42 is cooperatively connected with the inner ring locking plate 41.

[0033] When there is only one outer ring locking disc 42 on the outer periphery of the inner ring locking disc 41, the inner ring locking disc 41 and the outer ring locking disc 42 are tightly matched, or the outer ring locking disc 42 is a clamp structure. Of course, the locking assembly is not limited to this, and can also be implemented in other structural forms.

[0034] For example, Figure 1 As shown, in order to strengthen the clamping force of the sleeve on the shaft, the clamping assembly 4 further includes a reinforcing locking disc 43, which is arranged side by side with the outer ring locking disc 42 and is detachably connected through a fastener, and the reinforcing locking disc 43 is arranged on the outer periphery of the inner ring locking disc 41. When in use, the reinforcing locking disc 43 is connected to the outer ring locking disc 42 as a whole to strengthen the clamping force of the sleeve on the shaft, to provide the sleeve with an interference fit to clamp on the shaft, and to transmit torque through the interference fit.

[0035] like Figure 1 As shown, in order to quickly position and connect the clamping assembly with the connecting section, the end of the connecting section 31 of the external gear sleeve 3 has a positioning step, and the inner ring locking disk 41 is arranged on the positioning step of the connecting section 31.

[0036] like Figure 1 As shown, in order to further improve the rationality of the structure and optimize the product structure, the inner tooth outer shell 2 is arranged on the outer periphery of the extension section 32 of the outer tooth shaft sleeve 3, and the inner teeth of the inner tooth outer shell 2 are meshed with the outer teeth of the extension section 32.

[0037] like Figure 1 As shown, in order to enable the two groups of inner tooth outer shells to be docked and quickly connected to the end cover, connecting flanges 21 are respectively provided at both ends of the inner tooth outer shell 2. The connecting flange at one end of the inner tooth outer shell 2 is detachably connected to the end cover 1 through fasteners, and the connecting flange at the other end of the inner tooth outer shell 2 of one group of shaft sleeve connecting mechanisms is detachably connected to the connecting flange at the other end of the inner tooth outer shell 2 of the other group of shaft sleeve connecting mechanisms.

[0038] like Figure 1 As shown, in order to enable rapid positioning and assembly between the two inner tooth outer shells and improve assembly accuracy, the inner tooth outer shells 2 of the two sets of sleeve connection mechanisms are positioned together through a positioning connection mechanism, and the positioning connection mechanism includes a stop 5 provided on an inner tooth outer shell 3, and a flange 6 provided on the other inner tooth outer shell 3 and forming a positioning fit with the stop 5.

[0039] like Figure 1 As shown, in order to ensure the sealing of the coupling itself and prevent the leakage of lubricating oil or grease in the cavity formed between the inner gear housing and the outer gear sleeve, the end cover 1 is sealed and connected to the outer gear sleeve 3 through a sealing ring.

[0040] like Figure 1 It is shown that a cavity is formed between the inner tooth outer shell and the outer tooth shaft sleeve, and the sealing between the end cover and the outer tooth shaft sleeve is utilized to ensure the sealing of the cavity. At the same time, in order to facilitate the injection of lubricating oil or grease into the cavity, an oil filling hole 7 is provided on the inner tooth outer shell 2. After oil is injected according to actual needs, it is sealed by a sealing plug.

[0041] Therefore, the utility model lengthens the length of the shaft sleeve so that the external gear shaft sleeve has a connecting section and an extension section that are connected as one body. In this way, the coupling of the utility model has a long shaft spacing d, replacing the technical solution of the prior art that requires additional intermediate section components when applied to long shaft spacing transmission. It not only reduces the number of components, optimizes the design and manufacturing cost, but also does not increase the difficulty of assembly, thereby achieving the long shaft spacing transmission requirements and reducing costs and increasing efficiency.

[0042] The utility model adds a clamping component to the end of the external gear sleeve, and provides the sleeve with an interference fit to clamp on the shaft by locking the inner ring locking plate and the outer ring locking plate on the external gear sleeve, and transmits torque through the interference fit, successfully realizing the function of the coupling being able to be installed at room temperature while meeting the transmission requirements of long shaft spacing.

[0043] Specifically: ① No need to use special equipment: that is, the disassembly and assembly of the sleeve locking disc of the utility model only requires an ordinary torque wrench, which greatly increases the operability on site and improves efficiency. No additional special disassembly equipment is required, which not only saves time and effort, but also reduces the cost of use. ② No need to heat the sleeve: that is, the sleeve installation only needs to be carried out at room temperature, avoiding potential operational safety risks. ③ The same model has a larger hole opening capacity: that is, on the basis of the same model, a larger hole opening option can be provided, further improving the cost performance.

[0044] In summary, the utility model realizes the product functions of long shaft spacing transmission and rapid disassembly and assembly at room temperature by lengthening the external gear sleeve and matching the locking disk installation.

[0045] Based on the above ideal embodiments of the utility model, the relevant staff can make various changes and modifications without deviating from the technical concept of the utility model through the above description. The technical scope of the utility model is not limited to the content of the specification, and its technical scope must be determined according to the scope of the claims.

Claims

1. A long-pitch cold-installed drum gear coupling, comprising two sets of symmetrically arranged shaft sleeve connection mechanisms, each set of shaft sleeve connection mechanisms comprising an end cover (1), an inner tooth outer shell (2) and an outer tooth shaft sleeve (3), the inner tooth outer shell (2) being arranged on a partial outer periphery of the outer tooth shaft sleeve (3), and the inner teeth of the inner tooth outer shell (2) being meshed with the outer teeth of the outer tooth shaft sleeve (3), the end cover (1) being arranged on the outer end surface of the inner tooth outer shell (2) and being detachably connected thereto, and the end cover (1) being sleeved on the outer periphery of the outer tooth shaft sleeve (3) and forming a sealing connection therewith, the outer tooth shaft sleeves (3) of the two sets of shaft sleeve connection mechanisms being connected as one body, characterized in that: The external gear shaft sleeve (3) of each set of shaft sleeve connection mechanisms comprises a connecting section (31) and an extension section (32) which are connected as one body, and the inner holes of the connecting section (31) and the extension section (32) are arranged coaxially. The end of the connecting section (31) of the external gear shaft sleeve (3) of each set of shaft sleeve connecting mechanisms is provided with a clamping assembly for realizing cold installation of the shaft sleeve, the clamping assembly (4) comprising an inner ring locking plate (41) and an outer ring locking plate (42), the inner ring locking plate (41) being arranged on the outer periphery of the end of the connecting section (31) of the external gear shaft sleeve (3), and the outer ring locking plate (42) being cooperatively connected with the inner ring locking plate (41).

2. The long-spacing cold-installed drum gear coupling according to claim 1 is characterized in that: The clamping assembly (4) further comprises a reinforced locking disc (43), wherein the reinforced locking disc (43) is arranged side by side with the outer ring locking disc (42) and is detachably connected via a fastener, and the reinforced locking disc (43) is arranged on the outer periphery of the inner ring locking disc (41).

3. The long-spacing cold-installed drum gear coupling according to claim 1, characterized in that: The end of the connecting section (31) of the external gear shaft sleeve (3) has a positioning step, and the inner ring locking disc (41) is arranged on the positioning step of the connecting section (31).

4. The long-spacing cold-installed drum gear coupling according to claim 1, characterized in that: The inner tooth outer shell (2) is arranged on the outer periphery of the extended section (32) of the outer tooth shaft sleeve (3), and the inner teeth of the inner tooth outer shell (2) mesh with the outer teeth of the extended section (32).

5. The long-spacing cold-installed drum gear coupling according to claim 1, characterized in that: The two ends of the inner tooth outer shell (2) are respectively provided with connecting flanges (21); the connecting flange at one end of the inner tooth outer shell (2) is detachably connected to the end cover (1) via a fastener; and the connecting flange at the other end of the inner tooth outer shell (2) of one set of shaft sleeve connecting mechanisms is detachably connected to the connecting flange at the other end of the inner tooth outer shell (2) of another set of shaft sleeve connecting mechanisms.

6. The long-spacing cold-installed drum gear coupling according to claim 1 or 5, characterized in that: The inner tooth outer shells (2) of the two sets of shaft sleeve connection mechanisms are positioned together by a positioning connection mechanism, and the positioning connection mechanism comprises a stopper (5) provided on one inner tooth outer shell (2), and a flange (6) provided on the other inner tooth outer shell (2) and forming a positioning match with the stopper (5).

7. The long-spacing cold-installed drum gear coupling according to claim 1, characterized in that: The end cover (1) is sealedly connected to the external gear shaft sleeve (3) via a sealing ring.

8. The long-spacing cold-installed drum gear coupling according to claim 1, characterized in that: The inner gear outer shell (2) is provided with an oil filling hole (7).

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