Transmission belt wheel assembly structure convenient to disassemble and assemble

Abstract

The utility model relates to the technical field of belt pulleys, in particular to a transmission belt pulley assembly structure convenient to disassemble and assemble, which comprises two shells which are symmetrically arranged, a transmission mechanism is arranged on each shell and is used for power transmission, and each transmission mechanism comprises a belt pulley assembly and two shaft rods which are rotatably arranged in the corresponding shell, a rotating disc is fixed to the rear end of the outer wall of the shaft rod, a plurality of sliding grooves distributed at equal intervals are formed in the rotating disc, belt wheel blocks are slidably installed in the sliding grooves, a plurality of shaft frames distributed at equal intervals are fixed to the front end of the rotating disc, supporting rods are pivoted to the shaft frames, first connecting rods are pivoted to the rear ends of the supporting rods, and the rear ends of the first connecting rods are pivoted to the lower ends of the belt wheel blocks. A sliding sleeve is slidably mounted on the shaft rod in a sleeving manner, a plurality of shaft seats which are circumferentially distributed are fixed to the outer wall of the sliding sleeve, second connecting rods are pivoted to the shaft seats, and the rear ends of the second connecting rods are pivoted to the front ends of the supporting rods; different transmission requirements are met by flexibly adjusting the diameters of the belt wheels, the sizes of the belt wheels at the two ends can be flexibly adjusted, and the transmission efficiency and adaptability are improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of pulley, concretely to a transmission pulley assembly structure convenient to dismount. BACKGROUND

[0002] Transmission pulley assembly is the key component in mechanical transmission system, and is widely used in various industrial equipment and agricultural machinery fields;

[0003] According to the check publication number: CN221401560U, a kind of transmission wheel convenient to dismount is disclosed, this technology discloses "a kind of transmission wheel convenient to dismount, belong to mechanical transmission technical field, transmission member is around with transmission shaft as center and is arranged on wheel disc;The wheel disc is provided with through hole, the shaft sleeve one end passes through through hole, and is fixedly arranged in through hole, shaft sleeve is coaxially fixed with wheel disc, the transmission shaft is sleeved with shaft sleeve, the first sealing cover is arranged in the one end of shaft sleeve, the second sealing cover is arranged in the other end, and the one end of shaft sleeve passes through the first sealing cover" and other technical schemes, with "when transmission shaft or transmission wheel is damaged, it can be disassembled and maintained;Transmission wheel is formed by wheel disc and transmission member, at this time, light in weight, and the strength of transmission member is increased by using support piece to support shaft sleeve and transmission member" and other technical effects;

[0004] Traditional fixed size transmission pulley because of the speed ratio is not adjustable, leading to fixed speed ratio cannot be dynamically adjusted according to load change, if speed ratio needs to be adjusted, must replace whole pulley or belt, prolongs equipment downtime, affects production efficiency, in the face of different speed or torque demand, fixed speed ratio design lacks flexibility, limit the application potential of equipment under diversified working conditions. UTILITARIAN CONTENT

[0005] In view of the deficiency of prior art, the utility model provides a transmission pulley assembly structure convenient to dismount, through pulley diameter flexible adjustment, satisfy different transmission demand, and can flexibly adjust the size of two ends pulley, improve transmission efficiency and adaptability.

[0006] To realize above-mentioned purpose, the utility model is realized through following technical scheme: a kind of transmission pulley assembly structure convenient to dismount, including two housings of symmetrical installation, the housing is provided with transmission mechanism and is used for power transmission, transmission mechanism includes:

[0007] The pulley assembly comprises two shaft rods rotatably installed inside the shell, a rotating disc is fixed to the rear end of the outer wall of the shaft rod, a plurality of slide grooves are equidistantly arranged inside the rotating disc, a pulley block is slidably installed inside the slide groove, a plurality of shaft supports are equidistantly arranged at the front end of the rotating disc, a supporting rod is pivotally connected to the shaft support, a first connecting rod is pivotally connected to the rear end of the supporting rod, and the rear end of the first connecting rod is pivotally connected to the lower end of the pulley block, a sliding sleeve is slidably sleeved on the shaft rod, a plurality of shaft seats are circumferentially arranged on the outer wall of the sliding sleeve, a second connecting rod is pivotally connected to the shaft seat, and the rear end of the second connecting rod is pivotally connected to the front end of the supporting rod.

[0008] The linkage assembly comprises a support rotatably installed at the front end of the shell.

[0009] The tensioning assembly is arranged on the shell and is used for tensioning the transmission belt.

[0010] Preferably, the pulley assembly further comprises a sliding sleeve rotatably installed on the upper and lower ends of the sliding sleeve.

[0011] Preferably, the linkage assembly further comprises a waist-shaped hole arranged in the inner portion of the two ends of the support, and the sliding sleeve is arranged in the waist-shaped hole.

[0012] Preferably, the tensioning assembly comprises a rotating shaft rotatably installed at the lower end of the shell, a supporting frame is fixed to the outer wall of the rotating shaft, and a tensioning wheel is rotatably installed on the upper end of the supporting frame.

[0013] Preferably, the pulley assembly further comprises a plurality of stop blocks installed on the outer edge of the rotating disc, and the stop blocks are arranged at the outer end of the slide groove.

[0014] Preferably, the end edge of the shell is fixed with a mounting lug, and the two shells are fixed through the mounting lug and a bolt.

[0015] Beneficial effects

[0016] The utility model provides a transmission pulley assembly structure convenient to dismount compared with prior art has the following beneficial effects:

[0017] 1, when the sliding sleeve slides along the shaft rod, the sliding sleeve drives the supporting rod to rotate through the shaft seat and the second connecting rod, and the supporting rod drives the pulley block to slide along the slide groove through the first connecting rod; a complete pulley is formed by the plurality of pulley blocks, so that the plurality of pulley blocks are opened outward, a larger pulley is formed, and vice versa, a smaller pulley is formed; the diameter of the pulley is flexibly adjusted, thereby forming pulleys of different sizes, meeting different transmission requirements, and improving the versatility and adaptability of the assembly.

[0018] 2, by the external drive device control support rotation, support rotation through the waist type hole cooperation cam drive sliding sleeve along the shaft rod sliding, and one end sliding sleeve forward movement when the other sliding sleeve moves backward, so that one end several pulley block composition pulley becomes larger, the other end several pulley block composition pulley becomes smaller;Make the assembly can be in different transmission scene, according to the actual demand flexible adjustment of the size of the two ends of the pulley, further improve the transmission efficiency and adaptability. BRIEF DESCRIPTION OF DRAWINGS

[0019] Figure 1 It is the three-dimensional structure schematic diagram of the utility model;

[0020] Figure 2 It is the structure schematic diagram of the utility model inside;

[0021] Figure 3 It is the section view of the utility model;

[0022] Figure 4 It is the structure schematic diagram of transmission mechanism in the utility model;

[0023] Figure 5 It is the section view of transmission mechanism local in the utility model.

[0024] In the drawing: 1, shell;2, transmission mechanism;21, pulley assembly;211, shaft rod;212, rotary disc;213, sliding groove;214, pulley block;215, axle stand;216, support rod;217, first connecting rod;218, sliding sleeve;219, shaft seat;2110, second connecting rod;2111, cam;2112, stop block;22, linkage assembly;221, support;222, waist type hole;23, tensioning assembly;231, rotating shaft;232, support frame;233, tensioning wheel;3, mounting lug. DETAILED DESCRIPTION

[0025] The technical solutions in the embodiments of the utility model will be apparently and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the utility model.

[0026] Please refer to Figure 1 - Figure 5 The utility model provides a kind of technical solutions: a transmission pulley assembly structure of convenient dismounting, including two symmetrical installation housings 1, housing 1 is provided with transmission mechanism 2 and is used for power transmission, transmission mechanism 2 includes:

[0027] The pulley assembly 21 comprises two shaft rods 211 rotatably installed inside the shell 1, the outer wall rear end of the shaft rod 211 is fixed with a rotating disc 212, a plurality of sliding grooves 213 are arranged at equal intervals in the rotating disc 212, a pulley block 214 is slidably installed in the sliding groove 213, a plurality of shaft supports 215 are arranged at equal intervals at the front end of the rotating disc 212, a supporting rod 216 is pivoted on the shaft support 215, the rear end of the supporting rod 216 is pivoted with a first connecting rod 217, and the rear end of the first connecting rod 217 is pivoted with the lower end of the pulley block 214, a sliding sleeve 218 is slidably sleeved on the shaft rod 211, a plurality of shaft seats 219 are fixedly arranged on the outer wall of the sliding sleeve 218, a second connecting rod 2110 is pivoted on the shaft seat 219, and the rear end of the second connecting rod 2110 is pivoted with the front end of the supporting rod 216.

[0028] The linkage assembly 22 comprises a bracket 221 rotatably installed at the front end of the shell 1.

[0029] The tensioning assembly 23 is arranged on the shell 1 and is used for tensioning the transmission belt.

[0030] In this embodiment, when the sliding sleeve 218 slides along the shaft rod 211, the sliding sleeve 218 drives the supporting rod 216 to rotate through the cooperation of the shaft seat 219 and the second connecting rod 2110, and the supporting rod 216 drives the pulley block 214 to slide along the sliding groove 213 through the first connecting rod 217; a complete pulley is formed by the plurality of pulley blocks 214, so that when the plurality of pulley blocks 214 expand outward, a larger pulley is formed, and vice versa; the diameter of the pulley is flexibly adjusted, so that pulleys of different sizes are formed, different transmission requirements are met, and the versatility and adaptability of the assembly are improved.

[0031] Specifically, the pulley assembly 21 further comprises a sliding sleeve 218 rotatably installed on the outer wall of the sliding sleeve 218.

[0032] In this embodiment, the bracket 221 is controlled to rotate by an external driving device, and when the bracket 221 rotates, the sliding sleeve 218 slides along the shaft rod 211 through the cooperation of the waist-shaped hole 222 and the cam 2111, and when one end of the sliding sleeve 218 moves forward, the other end of the sliding sleeve 218 moves backward, so that when the pulley formed by the plurality of pulley blocks 214 at one end becomes larger, the pulley formed by the plurality of pulley blocks 214 at the other end becomes smaller; the size of the pulleys at both ends can be flexibly adjusted according to actual requirements in different transmission scenes, and the transmission efficiency and adaptability are further improved.

[0033] Specifically, the linkage assembly 22 further comprises a waist-shaped hole 222 arranged in the inner part of the bracket 221 at both ends, and the sliding sleeve 218 is located in the waist-shaped hole 222.

[0034] In the embodiment, when the support 221 drives the sliding sleeve 218 through the cam 2111, the cam 2111 rolls along the inside of the waist-shaped hole 222, so that the support 221 can smoothly drive the sliding sleeve 218 to slide, thereby ensuring the stability and reliability of the adjustment process of the pulley block 214 and reducing the friction and wear during movement.

[0035] Specifically, the tensioning assembly 23 comprises a rotating shaft 231 rotatably installed in the middle of the lower end of the shell 1, and a support frame 232 is fixed to the outer wall of the rotating shaft 231, and a tensioning wheel 233 is rotatably installed at the upper end of the support frame 232.

[0036] In the embodiment, the rotating shaft 231 can be controlled to rotate by an external driving device, so that the rotating shaft 231 drives the tensioning wheel 233 to tension the transmission belt through the support frame 232, and the pulley formed by the plurality of pulley blocks 214 can be tensioned in real time when the diameter is adjusted.

[0037] Specifically, the pulley assembly 21 further comprises a plurality of stop blocks 2112 installed on the outer edge of the rotating disc 212, and the stop blocks 2112 are located inside the outer end of the sliding groove 213.

[0038] In the embodiment, the stop blocks 2112 are added in the pulley assembly 21 to limit the pulley blocks 214, so that the pulley blocks 214 are prevented from being separated from the sliding groove 213 during sliding, thereby ensuring the structural stability and reliability of the pulley assembly 21 and prolonging the service life of the assembly.

[0039] Specifically, the end edges of the shell 1 are fixed with mounting lugs 3, and the two shells 1 are fixed by the mounting lugs 3 and cooperating bolts.

[0040] In the embodiment, the shell 1 is convenient to disassemble and assemble, so that the installation, disassembly and maintenance of the assembly are more convenient and fast, and the maintenance cost is reduced.

[0041] The working principle and use process of the utility model are as follows: first, the support 221 is controlled to rotate by an external driving device, and the sliding sleeve 218 is driven to slide along the shaft 211 through the waist-shaped hole 222 and the cam 2111 when the support 221 rotates, and one end of the sliding sleeve 218 moves forward while the other end of the sliding sleeve 218 moves backward, so that the pulley formed by the plurality of pulley blocks 214 at one end becomes larger while the pulley formed by the plurality of pulley blocks 214 at the other end becomes smaller; the assembly can flexibly adjust the sizes of the pulleys at two ends according to actual needs in different transmission scenes, and the transmission efficiency and adaptability are further improved.

[0042] When the sliding sleeve 218 slides along the shaft rod 211, the sliding sleeve 218 drives the support rod 216 to rotate through the shaft seat 219 cooperating with the second connecting rod 2110, and the support rod 216 drives the pulley block 214 to slide along the inside of the sliding groove 213 through the first connecting rod 217; a complete pulley is formed by the plurality of pulley blocks 214, so that when the plurality of pulley blocks 214 expand outward, a larger pulley is formed, and similarly, when the plurality of pulley blocks 214 gather inward, a smaller pulley is formed; flexible adjustment of the diameter of the pulley is achieved, thereby forming pulleys of different sizes to meet different transmission requirements and improve the versatility and adaptability of the assembly.

[0043] Meanwhile, the rotation of the rotating shaft 231 is controlled by the external driving device, so that the rotating shaft 231 drives the tension pulley 233 to tension the transmission belt through the support frame 232, so that the pulley formed by the plurality of pulley blocks 214 can be tensioned in real time when the diameter is adjusted.

[0044] It should be noted that in this paper, relationship terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between the entities or operations. Moreover, the terms "include", "contain" or any other variant thereof are intended to cover non-exclusive inclusion, so that the process, method, article or equipment including a series of elements not only includes those elements, but also includes other elements not explicitly listed or inherent to such process, method, article or equipment.

[0045] Although the embodiments of the utility model have been shown and described, it can be understood by those skilled in the art that various changes, modifications, replacements and variations can be made to these embodiments without departing from the principles and spirits of the utility model, and the scope of the utility model is defined by the appended claims and their equivalents.

Claims

1. A transmission belt pulley assembly structure that is easy to disassemble and assemble, comprising two symmetrically mounted housings (1), characterized in that: The outer casing (1) is provided with a transmission mechanism (2) for power transmission. The transmission mechanism (2) includes: The pulley assembly (21) includes two shafts (211) rotatably mounted inside the housing (1). A turntable (212) is fixed to the rear end of the outer wall of the shafts (211). A plurality of equally spaced grooves (213) are provided inside the turntable (212). A pulley block (214) is slidably mounted inside the grooves (213). A plurality of equally spaced axle supports (215) are fixed to the front end of the turntable (212). A support rod (216) is pivotally connected to the axle supports (215). The first connecting rod (217) is pivotally connected to the rear end of the strut (216), and the rear end of the first connecting rod (217) is pivotally connected to the lower end of the pulley block (214). A sliding sleeve (218) is slidably mounted on the shaft (211). Several circumferentially distributed bearing seats (219) are fixed on the outer wall of the sliding sleeve (218). A second connecting rod (2110) is pivotally connected to the bearing seat (219), and the rear end of the second connecting rod (2110) is pivotally connected to the front end of the strut (216). The linkage assembly (22) includes a bracket (221) that is rotatably mounted in the middle of the front end inside the housing (1); Tensioning assembly (23) is disposed on housing (1) and used to tension the drive belt.

2. The transmission belt pulley assembly structure for easy assembly and disassembly according to claim 1, characterized in that: The pulley assembly (21) also includes a sliding sleeve (218) which is rotatably mounted on the outer walls of the upper and lower ends of the sliding sleeve (218).

3. The transmission belt pulley assembly structure for easy disassembly and assembly according to claim 2, characterized in that: The linkage component (22) also includes waist-shaped holes (222) opened inside both ends of the bracket (221), and the sliding sleeve (218) is located inside the waist-shaped holes (222).

4. The transmission belt pulley assembly structure for easy assembly and disassembly according to claim 1, characterized in that: The tensioning assembly (23) includes a rotating shaft (231) rotatably mounted inside the lower middle of the housing (1), a support frame (232) fixed on the outer wall of the rotating shaft (231), and a tensioning wheel (233) rotatably mounted on the upper end of the support frame (232).

5. The transmission belt pulley assembly structure for easy disassembly and assembly according to claim 1, characterized in that: The pulley assembly (21) also includes a number of stops (2112) installed on the outer edge of the turntable (212), and the stops (2112) are located at the outer end of the inner groove (213).

6. The transmission belt pulley assembly structure for easy disassembly and assembly according to claim 1, characterized in that: The end edge of the outer shell (1) is fixed with mounting ears (3), and the two outer shells (1) are fixed together by mounting ears (3) and bolts.

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