Tensioning device for transmission belt of electrically operated gate

Abstract

The utility model provides an electrically operated gate transmission belt tensioning device, and belongs to the field of transmission equipment manufacturing. The tensioning device comprises a base, a tensioning wheel, a spring, a mounting plate and an adjusting rod, the base is provided with two sliding grooves which are parallel to each other. The tensioning wheel is rotatably mounted on the mounting plate; the mounting plate is connected with the base through the sliding groove and slides in the length direction of the sliding groove. The adjusting rod is provided with an adjusting end and a compression end; a limiting ring is arranged between the adjusting end and the compression end; the adjusting end is a lead screw and is installed on the base through the lead screw. The compression end is sleeved with the spring, one end of the spring abuts against the mounting plate, and the other end of the spring makes contact with the limiting ring. The position of the tensioning wheel can be adjusted through the adjusting rod, tensioning is conducted through the telescopic force of the spring, adjustment is convenient, manufacturing is easy, and the cost is low.

Description

TECHNICAL FIELD

[0001] The utility model relates to electric door manufacturing technology especially relates to a kind of electric door transmission belt tensioner, belong to transmission equipment manufacturing technology field. BACKGROUND

[0002] The design, production and installation of industrial door must be strictly in accordance with the new standards of state and industry, and need to fully comply with the various safety use guidelines of state and industry, while supplemented by the actual use requirements of industrial door user, on-site environment and other factors to carry out comprehensive consideration, strictly control the product quality of industrial door.

[0003] Sliding door is a type frequently used in industrial production;Sliding door relies on the synchronous transmission of chain or belt to realize synchronous opening door leaf.In the belt transmission device, the belt needs to be regularly maintained and repaired after long time use, and due to the relatively complex and compact structure of transmission device, it is difficult to maintain and repair the belt, especially when installing the belt for the first time, it needs to be repeatedly adjusted to the tensioning degree, which greatly increases the installation and maintenance cost.

[0004] Moreover, the existing tensioning device adjusts and fixes the position of tensioning wheel at one time, and simply relies on fastening bolt or tensioning spring for tensioning, once the spring is fatigued and fails or the bolt is loose, the tensioning effect will be completely lost immediately, thereby causing the belt transmission to fail and endangering the normal operation of electric control door. CONTENT OF UTILITY MODEL

[0005] The utility model provides a new electric door transmission belt tensioner, which adjusts the tensioning degree at the position of mounting plate, so as to conveniently install and maintain the tensioning system, to solve the technical problem of repeated adjustment and poor stability in the installation process of tensioning device in the prior art.

[0006] The electric door transmission belt tensioner of the utility model embodiment comprises a base, a tensioning wheel, a spring, a mounting plate and an adjusting rod;Two parallel sliding grooves are arranged on the base;The tensioning wheel is rotatably mounted on the mounting plate;The mounting plate is connected with the base through the sliding grooves and slides along the length direction of the sliding grooves.

[0007] The adjusting rod has an adjusting end and a compression end;A limiting ring is arranged between the adjusting end and the compression end;The adjusting end is a screw rod, and is mounted on the base through the screw rod;The spring is sleeved on the compression end, one end of the spring abuts against the mounting plate, and the other end contacts the limiting ring.

[0008] The electric door transmission belt tensioning device as claimed in any one of the preceding claims, wherein an adjusting base is mounted on the base, and a screw hole is arranged on the adjusting base; the screw rod is rotatably mounted in the screw hole and connected with the adjusting base; the screw rod is rotated to make the adjusting rod extend or retract along the length direction of the sliding groove.

[0009] The electric door transmission belt tensioning device as claimed in any one of the preceding claims, wherein a plurality of clamping pins are arranged on the mounting plate, and each clamping pin is located in the sliding groove; the mounting plate slides along the sliding groove through the clamping pins.

[0010] The electric door transmission belt tensioning device as claimed in any one of the preceding claims, wherein a plurality of fastening bolts are arranged on the mounting plate; each fastening bolt is connected with the mounting plate through the sliding groove to make the mounting plate press on the base.

[0011] The electric door transmission belt tensioning device as claimed in any one of the preceding claims, wherein a contact plate is arranged on the mounting plate, and the contact plate is provided with a positioning hole; the compression end is provided with a plug pin, and the plug pin is sleeved in the positioning hole.

[0012] The electric door transmission belt tensioning device as claimed in any one of the preceding claims, wherein the contact plate is further provided with a movable insert piece, and the movable insert piece is provided with a through hole; the base is provided with a viewing window, and the viewing window corresponds to the spring; the through hole is located between the viewing window and the spring.

[0013] The electric door transmission belt tensioning device as claimed in any one of the preceding claims, wherein the movable insert piece is a bent structure, and the bent structure has an elongated part; the elongated part is parallel to the adjusting rod, and the through hole is arranged on the elongated part.

[0014] The electric door transmission belt tensioning device as claimed in any one of the preceding claims, wherein the mounting plate is provided with a bearing seat; and the tensioning wheel is mounted on the mounting plate through the bearing seat.

[0015] The electric door transmission belt tensioning device as claimed in any one of the preceding claims, wherein the end of the screw rod is provided with a hexagonal nut.

[0016] The electric door transmission belt tensioning device as claimed in any one of the preceding claims, wherein a display ring is sleeved on the outer side of the limiting ring.

[0017] In the embodiment of the utility model, the spring's expansion and contraction force is used for tensioning, and the position of the tensioning wheel can be adjusted through the adjusting rod, which is convenient to adjust and can still use the spring for tensioning when the connection between the mounting plate and the base fails, and the stability and reliability are high. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1The utility model discloses electric door transmission belt tensioning device's structure diagram for the embodiment of the utility model,

[0019] Figure 2 Electric door transmission belt tensioning device's exploded view for the embodiment of the utility model,

[0020] Figure 3 Electric door transmission belt tensioning device's plan view for the embodiment of the utility model,

[0021] Figure 4 Electric door transmission belt tensioning device's front view for the embodiment of the utility model,

[0022] Figure 5 Electric door transmission belt tensioning device's side view for the embodiment of the utility model. DETAILED DESCRIPTION

[0023] Electric door transmission belt tensioning device can adopt the following materials and components of the utility model discloses, and is not limited to the following materials and components, for example: belt, spring, tensioner, screw, sliding slot, pin, bayonet etc.

[0024] As Figure 1 The utility model discloses electric door transmission belt tensioning device's structure diagram for the embodiment of the utility model, combines Figures 2 to 5 .

[0025] Electric door transmission belt tensioning device of the utility model embodiment includes: base 1, tensioner 20, spring 5, mounting plate 2 and adjusting rod 4, be provided with two parallel sliding slots 11 on base 1, tensioner 20 rotatablely installed on mounting plate 2, mounting plate 2 is connected with base 1 through sliding slot 11, and along the length direction of sliding slot 11 sliding, in actual working process, adjusting the different position of mounting plate 2 on sliding slot 11, to control the tension of tensioner 20.

[0026] Adjusting rod 5 has adjusting end and compression end, and the adjusting end and the compression end have limit ring 45, that is to say, limit ring 45 one side is adjusting end, and the other side is compression end.

[0027] The adjusting end is screw 40, and is installed on base 1 through the screw 40, and the compression end is provided with spring 5, and one end of the spring 5 is in abutment on mounting plate 2, and the other end is in contact with limit ring 45.

[0028] Specifically as Figure 2The electric door transmission belt tensioning device of the embodiment is characterized in that an adjusting base 14 is arranged on the base 1, a screw hole is arranged on the adjusting base 14, a screw rod 40 is rotatably arranged in the screw hole and connected with the adjusting base 14, and the screw rod 40 is rotated to make the adjusting rod 4 extend or retract along the length direction of the sliding groove 11.

[0029] Generally, a plurality of clamping pins 21 are arranged on the mounting plate 2, and each clamping pin 11 is located in the sliding groove 11, and the mounting plate 2 slides along the sliding groove 11 through the clamping pins 21.

[0030] Generally, there are four clamping pins, which are divided into two groups and respectively embedded in the sliding groove 11, so as to ensure the stability of the sliding of the mounting plate 2.

[0031] Further, a plurality of fastening bolts 22 are arranged on the mounting plate 2, each fastening bolt 22 is connected with the mounting plate 2 through the sliding groove 11, so as to press the mounting plate 2 on the base 1. When the adjusting rod 4 completes the adjustment of the tensioning force, the fastening bolts 22 are tightened, so that the mounting plate 2 and the base 1 are fixedly connected by the friction therebetween.

[0032] When the tensioning work is performed, the belt 6 is first sleeved on the tensioning wheel 20, then the screw rod 40 is adjusted to make the screw rod 40 continuously move to the tensioning wheel 20, so as to compress the spring 5, when the spring 5 is compressed to a certain degree and the tensioning force is appropriate, the mounting plate is connected with the base 1 by the bolts and is fixed, so as to complete the adjustment work of the tensioning belt.

[0033] Generally, a hexagonal nut is arranged at the end of the screw rod 40, so as to facilitate the adjustment of the screw rod by a wrench.

[0034] During the long-term operation of the belt, if the mounting plate 2 and the base 1 are loose or separated, since the spring 5 on the adjusting rod 4 still abuts against the mounting plate 2 at this time, the failure of the belt transmission will not be caused, and the normal operation can still be maintained, so that the stability of the electric control door belt transmission operation is greatly increased.

[0035] The embodiment utilizes the expansion and contraction force of the spring to perform the tensioning, and the position of the tensioning wheel can be adjusted by the adjusting rod, which is not only convenient to adjust but also can still utilize the spring to perform the tensioning in the case that the connection between the mounting plate and the base is invalid, so that the stability is high and the reliability is strong.

[0036] The electric door transmission belt tensioning device of the embodiment is characterized in that a contact plate 24 is arranged on the mounting plate 2, the contact plate 24 is provided with a positioning hole, a plug pin is arranged on the compression end and sleeved in the positioning hole. The embedded and sliding design of the positioning hole and the plug pin can ensure that the adjusting rod will not be deformed in the process that the spring 5 is compressed, so as to ensure the stability of the tensioning force.

[0037] The electric door transmission belt tensioning device of the embodiment is shown in the drawings as Figure 2 and Figure 4 The movable insert piece 3 is provided on the contact plate 24, and a through hole 30 is provided on the movable insert piece 3; a viewing window 15 is provided on the base 1, and the viewing window 15 corresponds to the track of the compressed spring 5; the through hole 30 is located between the viewing window 15 and the spring 5.

[0038] In actual work, the entire electric door transmission belt tensioning device is generally an internal structure, in order to facilitate adjustment and installation, during the first installation process, the degree of compression of the spring 5 can be judged by observing the relative position relationship between the through hole 30 and the adjusting rod 4, which can greatly facilitate installation.

[0039] When installing the same type of electric door, only the position of the through hole 30 in the viewing window 15 needs to be observed, and whether the tensioning force is appropriate can be determined, which maximally facilitates installation.

[0040] Further, the movable insert piece 3 is a bent structure, and the bent structure has an elongated part; the elongated part is parallel to the adjusting rod 4, and the through hole 30 is provided on the elongated part.

[0041] In addition, the elongated part is usually a sheet structure, which is closely attached to the position of the viewing window 15. Thus, the degree of spring compression can be conveniently judged.

[0042] Further, the outer side of the limiting ring 45 is sleeved with a display ring 450. The display ring 450 is usually bright in color, such as red or orange. Once the connection between the mounting plate 2 and the base 1 fails (or the spring 5 fails), since the belt will vibrate during work, the display ring 450 can be observed through the viewing window 15 and the through hole 30, and it can be judged that the tensioning device at this position has a problem, which facilitates maintenance.

[0043] The electric door transmission belt tensioning device of the embodiment is shown in the drawings as

[0044] In addition, the electric door transmission belt tensioning device of the utility model has low manufacturing cost, is small and exquisite, has compact structure design, stable finished product quality, and is convenient for maintenance and installation and repair, and is suitable for tensioning work of various electric control door belt transmissions.

[0045] The above-mentioned embodiment serial numbers of the utility model only serve for description, and do not represent the advantages and disadvantages of the embodiments. Through the above description of the implementation mode, those skilled in the art can clearly understand that the above-mentioned embodiment method can be realized by means of some deformation and necessary general technology superposition; of course, it can also be realized by simplifying some important technical features. Based on such understanding, the technical scheme of the utility model is essentially or said to be the part that contributes to the prior art, that is, the overall structure and connection mode, and the structure described in each embodiment of the utility model.

[0046] Finally, it should be noted that: the above embodiments are only used to illustrate the technical scheme of the utility model, but not to limit it; although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that: it can still modify the technical scheme recorded in the foregoing embodiments, or make equivalent replacement for part or all of the technical features; and these modifications or replacements do not make the essence of the corresponding technical scheme deviate from the scope of the technical scheme of each embodiment of the utility model.

Claims

1. An electric door drive belt tensioning device, characterized in that The utility model relates to a tensioning device for a belt conveyor, which comprises a base, a tensioning wheel, a spring, a mounting plate and an adjusting rod. The adjusting rod has an adjusting end and a compression end, and a limiting ring is arranged between the adjusting end and the compression end. The base is provided with an adjusting seat, and the adjusting seat is provided with a screw hole.

2. The electric door drive belt tensioner of claim 1, wherein, The adjusting rod is rotatably arranged in the screw hole and connected with the adjusting seat.

3. The electric door drive belt tensioner of claim 2, wherein, The mounting plate is provided with a plurality of clamping pins, and each clamping pin is arranged in the sliding groove.

4. The electric door drive belt tensioner of claim 3, wherein, The mounting plate is provided with a plurality of fastening bolts.

5. The electrically powered door drive belt tensioning device according to any one of claims 1 to 4, characterized in that The mounting plate is provided with a contact plate, and the contact plate is provided with a positioning hole.

6. The electric door drive belt tensioning device according to claim 5, characterized in that The compression end is provided with a plug, and the plug is sleeved in the positioning hole.

7. The electric door drive belt tensioning device according to claim 6, characterized in that The contact plate is further provided with a movable tab, and the movable tab is provided with a through hole.

8. The electrically powered door drive belt tensioning device according to any one of claims 1 to 4, characterized in that The movable tab is in a bent structure, and the bent structure has an elongated part.

9. The electrically powered door drive belt tensioning device according to any one of claims 1 to 4, characterized in that The elongated part is parallel to the adjusting rod, and the through hole is arranged on the elongated part.

10. The electric door drive belt tensioner of claim 6, wherein, The mounting plate is provided with a bearing seat, and the tensioning wheel is arranged on the mounting plate through the bearing seat. The end of the screw rod is provided with a hexagonal nut. The limiting ring is provided with a display ring on the outside.

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