Low-noise high-cleanliness traction mechanism hung in center of cargo carrying table

Abstract

A low-noise and high-cleanliness traction mechanism hung in the center of a cargo carrying table comprises a lower cross beam, a lower cross beam and a lower cross beam, the two driving wheel sets are arranged on the two sides of the lower cross beam; the driving wheel set comprises a base; one end of the driving shaft is erected on the base through two bearings; the lower synchronous pulley is arranged on a driving shaft on the base; the coupler is used for connecting one ends of the driving shafts of the two driving wheel sets; the upper cross beam is located at the top of the cargo carrying table rack; the two driven wheel sets are arranged on the two sides of the upper cross beam and located above the two driving wheel sets; the driven wheel set comprises two tensioning seats arranged on the two sides of the upper cross beam. A mounting shaft hole is formed in the tensioning seat; the two ends of the driven shaft are arranged in the tensioning seat mounting shaft holes; the upper synchronous pulley is mounted in the middle of the driven shaft through a bearing; the two synchronous belts are connected with the upper synchronous belt wheels and the lower synchronous belt wheels in the two driving wheel sets and the two driven wheel sets respectively. The utility model has the advantages of low noise, no scrap iron and high cleanliness, and can ensure the operation precision and the bearing capacity of equipment in a 60-DEG C high-temperature environment.

Description

Technical Field

[0001] The utility model relates to the technical field of logistics warehousing, in particular to a low-noise and high-cleanliness traction mechanism hung at the center of a cargo platform. Background Art

[0002] In the field of warehousing, ordinary three-dimensional storage stackers often use wire rope lifting systems. The motor drives the drum, and the drum rotates to wind the wire rope to lift heavy objects. Iron filings will be generated during the winding process of the wire rope. In the new energy industry, some processes require working temperatures as high as 60 degrees. High temperature environments will cause the wire rope to dry and rust. Failure to lubricate in time will cause wire breakage, which is a potential safety hazard.

[0003] From the perspective of industry development trends, especially the new energy industry, it is not only necessary to adapt to the ambient temperature requirements, but the cleanliness of the workshop must reach the million level or even the hundred thousand level. The wire rope lifting system can no longer meet the market demand. In this context, it is necessary to develop a lifting mechanism with low noise and high cleanliness in a high temperature environment. Summary of the invention

[0004] The purpose of the utility model is to design a low-noise and high-cleanliness traction mechanism hung in the center of the cargo platform, which has the advantages of low noise, no iron filings, high cleanliness, and can also meet the requirements of ensuring the equipment operation accuracy and load-bearing capacity in a high temperature environment of 60 degrees; and it adopts a modular design, low cost and easy maintenance.

[0005] In order to achieve the above object, the technical solution of the utility model is:

[0006] A low-noise, high-cleanliness traction mechanism suspended at the center of a cargo platform, comprising:

[0007] The lower crossbeam is located at the bottom of the cargo platform frame;

[0008] Two driving wheel groups are arranged on both sides of the lower cross beam; the driving wheel groups include:

[0009] Pedestal;

[0010] A driving shaft, one end of which is mounted on the base through two bearing inner rings;

[0011] The lower synchronous pulley is sleeved on the driving shaft on the base;

[0012] A coupling connects one end of the driving shaft of the two driving wheel sets;

[0013] The upper crossbeam is located on top of the cargo platform frame;

[0014] Two driven wheel assemblies are arranged on both sides of the upper crossbeam and located above the two driving wheel assemblies; the driven wheel assemblies include:

[0015] Two tensioning seats are arranged on both sides of the upper crossbeam; the tensioning seats are provided with mounting shaft holes;

[0016] The driven shaft has two ends arranged in the two tensioning seat mounting shaft holes;

[0017] The upper synchronous pulley is installed in the middle of the driven shaft through two bearings; a shaft sleeve is arranged between the bearing and the tensioning seat;

[0018] Two synchronous belts are respectively connected to the upper and lower synchronous belt pulleys in the two driving wheel sets and the two driven wheel sets.

[0019] Preferably, the driving wheel assembly is designed with a base, an end cover, an oil seal and a bearing to form a closed space; and an oil filling hole is arranged on the oil nozzle end cover.

[0020] Preferably, oil nozzles and oil filling holes are provided on both end surfaces of the driven shaft.

[0021] Preferably, the bearing in the driving wheel set is a single-sided deep groove ball bearing with a tight cover.

[0022] Preferably, the synchronous belt is precisely manufactured from polyurethane and steel wire ropes parallel to the belt edges, and braided fabrics, and the belt core is tensioned with high-strength steel wire ropes.

[0023] Preferably, the driving shaft and the coupling adopt a double-key connection design.

[0024] In the low-noise, high-cleanliness traction mechanism hung at the center of the cargo platform described in the utility model:

[0025] The lower crossbeam in the utility model is only a schematic diagram of one structure, as the installation basis of the drive shaft mechanism, such a lower crossbeam is installed on a storage stacker, and this description only takes one of them as an example. The base is welded from several steel plates, or it can be cast, and a set of mounting plates is set on it for installing the driving wheel set. The structure is an open design, which is convenient for installation and later maintenance.

[0026] 1. Power transmission system

[0027] Install the two driving wheel groups on the mounting plate of the lower crossbeam, and use a double key at one end of the driving shaft to connect the motor and other power groups through the coupling to obtain the driving force. Use a key, two bearings, and an end cover to fix the synchronous wheel in the middle of the driving shaft, and use a double key at the other end to connect another set of driving wheel groups in series through the coupling. At this time, the two sets of driving wheel groups can obtain the same speed and torque driving force. Install the two driven wheel groups on the mounting plate of the upper crossbeam respectively and fix them with bolts. Use two equal-length open synchronous belts to connect the driving wheel group, the driven wheel group, and the cargo platform in series. Both ends of the synchronous belt opening are fixed on the cargo platform, and the level of the cargo platform (cargo) is adjusted through the tensioning seat on the cargo platform. At this time, a complete drive system is completed. When the equipment receives the lifting command, the motor and other power systems provide torque and speed to the synchronous wheel of the driving wheel group, and the synchronous wheel provides power to the cargo platform through the meshing action of the tooth groove on the surface and the tooth groove of the synchronous belt. Under the tension force and reversing function of the driven wheel, the rotational motion of the driving wheel group is converted into a linear motion of rising and falling, completing the lifting and storage of goods.

[0028] 2. Lubrication system

[0029] The driving wheel set is designed with a base, end cover, oil seal and single-side cover (deep groove ball) bearing to form a closed space; the deep groove ball bearing can be directly lubricated through the oil filling hole on the oil nozzle end cover, which reduces noise, prolongs the bearing life and improves transmission stability. The oil nozzle is designed with a small angle of 15° upward, which is convenient for visual inspection and lubrication.

[0030] The driven wheel set is designed with a driven shaft, a shaft sleeve, a spacer sleeve, and a single-sided cover (deep groove ball) bearing to form a closed space; the deep groove ball bearing is lubricated through an oil nozzle connected to the oil filling hole on the driven shaft and the oil hole on the shaft sleeve to reduce noise, extend the life of the bearing, and improve transmission stability.

[0031] 3. Maintenance and quick change function

[0032] Each set of driving wheel group is fixed to the lower beam with bolts, each driven wheel group is fixed to the upper beam with bolts, and the synchronous belt is fixed to the cargo platform with bolts. Because of the modular design, high interchangeability and sufficient inventory, the replacement of components can be completed on site by simply removing the fixing bolts of each component, which greatly meets the customer's maintenance and quick replacement needs and improves the market competitiveness of the equipment.

[0033] Compared with the prior art, the advantages of the utility model are:

[0034] The utility model adopts modular design, has low production cost, sufficient inventory, and meets the needs of quick replacement.

[0035] The synchronous belt structure of the utility model has high transmission efficiency, high precision and a wide operating temperature range, and can meet the needs of complex and extreme environments.

[0036] The drive of this utility model uses a synchronous belt as a lifting medium to improve the cleanliness of the equipment. At the same time, the lifting point of the lifting platform is set on the center of gravity line, which reduces the noise of the guide wheel, improves the transmission stability, and adapts to extremely cold and high temperature environments. It broadens the application scenarios of the mechanism and equipment. The synchronous belt structure is generally used in light-load scenarios, and this heavy-load stacker synchronous belt lifting mechanism is developed for heavy-load models. The synchronous belt does not need to be lubricated and maintenance-free, which will greatly reduce the owner's use cost.

[0037] The utility model synchronous belt adopts highly wear-resistant polyurethane material, does not generate iron filings and dust, and is suitable for 100,000-level high-cleanliness working conditions.

[0038] The utility model designs an efficient and convenient lubrication system, which provides a basis for subsequent automatic lubrication and reduces noise.

[0039] The center of gravity of the lifting mechanism of the utility model is on the same line as the lifting force, thereby reducing the wear of the guide wheel of the lifting mechanism and reducing the noise.

[0040] The driving structure of the utility model is suitable for most storage stackers. It can be widely used in new energy, machinery, electronics, pharmaceuticals, food and other industries. It is especially used in scenes with cleanliness requirements.

[0041] The utility model solves the contradiction between large equipment and high precision requirements, and the problem that large equipment and maintenance convenience cannot be taken into account for a long time that has plagued heavy stackers. The synchronous belt does not need lubrication, and the characteristics of maintenance-free, high cleanliness and low noise reduce maintenance costs and use costs, greatly improving product competitiveness. BRIEF DESCRIPTION OF THE DRAWINGS

[0042] Figure 1 It is a front view of an embodiment of the utility model;

[0043] Figure 2 A three-dimensional diagram of an embodiment of the utility model;

[0044] Figure 3 This is a three-dimensional diagram of the assembly of the driving wheel set and the coupling in the embodiment of the utility model;

[0045] Figure 4 A three-dimensional diagram of the driving wheel set in the embodiment of the utility model;

[0046] Figure 5 A cross-sectional view of a driving wheel set in an embodiment of the utility model;

[0047] Figure 6 A three-dimensional diagram of a driven wheel assembly in an embodiment of the utility model;

[0048] Figure 7 It is a cross-sectional view of the driven wheel set in the embodiment of the utility model. DETAILED DESCRIPTION

[0049] See also Figure 1 to Figure 7 The low-noise and high-cleanliness traction mechanism hung at the center of the cargo platform of the utility model comprises:

[0050] The lower cross beam 1 is located at the bottom of the cargo platform machine 100;

[0051] Two driving wheel sets 2, 2' are arranged on both sides of the lower cross beam 1; the driving wheel set 2 (taking the driving wheel set 2 as an example, the same below) includes:

[0052] Base 21;

[0053] The driving shaft 22 has one end mounted on the base 21 through the inner rings of two bearings 23 and 23'; its outer end is connected to the driving device 200, which can be a motor or a belt transmission mechanism driven by a motor;

[0054] The lower synchronous pulley 24 is sleeved on the driving shaft 22 on the base 21;

[0055] The coupling 3 connects one end of the driving shaft 22 of the two driving wheel sets 2;

[0056] An upper crossbeam 4, located on the top of the cargo platform frame;

[0057] The two driven wheel sets 5 are arranged on both sides of the upper cross beam 4 and are located above the two driving wheel sets 2; the driven wheel sets 5 include:

[0058] Two tensioning seats 51 are arranged on both sides of the upper cross beam 4; the tensioning seats 51 are provided with mounting shaft holes;

[0059] The driven shaft 52, both ends of which are arranged in the mounting shaft holes of the two tensioning seats 51;

[0060] The upper synchronous pulley 53 is installed at the middle of the driven shaft 52 through two bearings 54 and 54'; sleeves 55 and 55' are arranged between the bearings 54 and 54' and the tensioning seat 51;

[0061] Two synchronous belts 6, 6' are respectively connected to the upper and lower synchronous belt pulleys in the two driving wheel sets 2 and the two driven wheel sets 5, and the cargo platform 300 is connected to the two synchronous belts 6, 6'.

[0062] Preferably, the driving wheel set 2 is designed with a base 21 , an end cover 25 , an oil seal 26 and a single-sided cover bearing 23 to form a closed space; an oil injection hole is provided on the end cover 25 corresponding to the oil nozzle 27 .

[0063] Preferably, an oil nozzle 521 and an oil injection hole 522 are provided on both end surfaces of the driven shaft 52 .

[0064] Preferably, the bearings 23, 23' in the driving wheel set 2 are deep groove ball bearings.

[0065] Preferably, the synchronous belt is precisely manufactured from polyurethane and steel wire ropes parallel to the belt edges, and braided fabrics, and the belt core is tensioned with high-strength steel wire ropes.

[0066] Preferably, the driving shaft and the coupling adopt a double-key connection design.

Claims

1. A low-noise, high-cleanliness traction mechanism suspended at the center of a cargo platform, characterized in that: include, The lower crossbeam is located at the bottom of the cargo platform frame; Two driving wheel groups are arranged on both sides of the lower cross beam; the driving wheel groups include: Pedestal; A driving shaft, one end of which is mounted on the base through two bearing inner rings; The lower synchronous pulley is sleeved on the driving shaft on the base; A coupling connects one end of the driving shaft of the two driving wheel sets; The upper crossbeam is located on top of the cargo platform frame; Two driven wheel assemblies are arranged on both sides of the upper crossbeam and above the two driving wheel assemblies; the driven wheel assemblies include: Two tensioning seats are arranged on both sides of the upper crossbeam; the tensioning seats are provided with mounting shaft holes; The driven shaft has two ends arranged in the two tensioning seat mounting shaft holes; The upper synchronous pulley is installed at the middle of the driven shaft through two bearings; a shaft sleeve is arranged between the bearing and the tensioning seat; and two synchronous belts are respectively connected to the upper and lower synchronous pulleys in the two driving wheel sets and the two driven wheel sets.

2. The low-noise, high-cleanliness traction mechanism hung at the center of the cargo platform as claimed in claim 1, characterized in that: The driving wheel group is designed with a base, an end cover, an oil seal and a bearing to form a closed space; an oil injection hole is arranged on the oil nozzle end cover.

3. The low-noise, high-cleanliness traction mechanism hung at the center of the cargo platform as claimed in claim 1, characterized in that: Oil nozzles and oil filling holes are arranged on both end surfaces of the driven shaft.

4. The low-noise, high-cleanliness traction mechanism hung at the center of the cargo platform as claimed in claim 1, characterized in that: The bearing in the driving wheel set is a single-sided deep groove ball bearing with a tight cover.

5. The low-noise, high-cleanliness traction mechanism hung at the center of the cargo platform as claimed in claim 1, characterized in that: The synchronous belt is precisely made of polyurethane and steel wire ropes parallel to the belt edge, and braided fabrics, and the belt core is tensioned by high-strength steel wire ropes.

6. The low-noise, high-cleanliness traction mechanism hung at the center of the cargo platform as claimed in claim 1, characterized in that: The driving shaft and the coupling adopt a double-key connection design.

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