High-precision test lifting tower

Abstract

The utility model relates to the technical field of lifting towers, and discloses a high-precision test lifting tower which comprises a lifting tower body, an auxiliary supporting piece and a main supporting piece. The lifting tower comprises a hydraulic oil cylinder and multiple stages of tower bodies which are sequentially connected together in a sliding mode in a layer-by-layer empty sleeving mode. A locking structure is arranged on the main supporting piece, and the lifting tower is locked through the locking mechanism, so that the lifting tower and the main supporting piece cannot rotate relative to each other. Therefore, the lifting tower is more stable after being erected, the shaking amplitude is reduced, and the lifting precision of the lifting tower is improved; by means of the top pulley, the bottom pulley and the steel rope which are arranged in a specific mode, the multiple stages of tower bodies can stretch out and draw back synchronously, only power needs to be arranged on the first tower body and the second tower body, the arrangement mode is simple, and later maintenance is convenient; the manufacturing cost of a plurality of short steel cables is lower than that of a steel cable with the length equal to the sum of the length of a plurality of steel cables, and if a certain steel cable is damaged and needs to be replaced, only the damaged steel cable needs to be replaced correspondingly, so that the input cost is reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of lifting tower, specifically, it is a kind of high-precision test lifting tower. BACKGROUND

[0002] During the test, due to the limitation of site, the test equipment is often installed at different heights, and according to the different requirements of the measured parts, the stability of the bearing platform is also required, such as load, height, shaking amount, etc. One of the current market solutions is to use a lifting tower to carry out test equipment operation. The test lifting tower is a lifting device that can provide a high test equipment function. It can automatically lift the top load to a specified height in a short time, ensure the top load to work stably and safely in the air with high precision, and is widely used in mobile communication, mobile lighting, observation, radar system and electronic warfare industries.

[0003] Since the existing and mature lifting tower is mostly of hydraulic scissor type structure, its lifting height is low. Although some sleeve type lifting towers can have a higher lifting height, the end part shakes greatly after lifting too high, which reduces the precision of the lifting tower and ultimately leads to unsatisfactory test results. Therefore, a lifting tower with high lifting height and high precision is needed to solve the above problems. CONTENT OF THE UTILITY MODEL

[0004] The utility model aims at providing a high-precision test lifting tower to solve the problem of large end part shaking amplitude and low precision of the existing lifting tower with high lifting height.

[0005] The utility model is implemented by the following technical scheme: a high-precision test lifting tower, comprising:

[0006] The lifting tower comprises a hydraulic oil cylinder and first, second, third, fourth and fifth tower bodies which are connected together in a layer-by-layer sleeving manner, one end of the hydraulic oil cylinder is connected with the first tower body, and the other end of the hydraulic oil cylinder is connected with the second tower body; the second tower body, a locking pin and the fourth tower body are all provided with top pulleys, the third tower body, the fourth tower body and the fifth tower body are all provided with bottom pulleys, the first tower body, the second tower body and the third tower body are all provided with steel ropes; the steel rope on the first tower body is sleeved on the top pulley on the second tower body and the bottom pulley on the third tower body; the steel rope on the second tower body is sleeved on the top pulley on the third tower body and the bottom pulley on the fourth tower body; the steel rope on the third tower body is sleeved on the top pulley on the fourth tower body and the bottom pulley on the fifth tower body; a secondary support is used for assisting in supporting the lifting tower in a laid-down state; a primary support is rotatably connected with the secondary support, and the primary support is used for supporting the lifting tower; and a locking structure is arranged on the primary support, the lifting tower is locked by the locking structure when the lifting tower is erected, and the lifting tower cannot rotate relative to the primary support.

[0007] In order to better realize the utility model, further, the first tower body is provided with a limiting hole, the primary support comprises a primary support seat, the locking mechanism comprises a linear motor and a positioning pin, the positioning pin is installed on the linear motor, the linear motor is installed on the primary support seat, and the positioning pin is matched with the limiting hole.

[0008] In order to better realize the utility model, further, the first tower body, the second tower body, the third tower body, the fourth tower body and the fifth tower body are all provided with a plurality of sliding blocks.

[0009] In order to better realize the utility model, further, the hydraulic oil cylinder is connected with the first tower body through a spherical pair, and the hydraulic oil cylinder is connected with the second tower body through a spherical pair.

[0010] In order to better realize the utility model, further, any one of the second tower body, the third tower body, the fourth tower body and the fifth tower body is provided with a plurality of auxiliary connecting rings at an end far away from the primary support.

[0011] In order to better realize the utility model, further, the secondary support comprises a secondary support seat, the secondary support seat is provided with a gasket and a locking pin, the secondary support seat is provided with a clamping ring, and the locking pin is matched with the clamping ring.

[0012] Compared with the prior art, the utility model has the following advantages and beneficial effects:

[0013] (1) The utility model discloses a locking mechanism is set up, makes the lifting tower be more stable after standing up, reduces the swing amplitude, thereby improving the precision of lifting tower, the slider is set up to reduce the tower body gap, further improve the lifting precision of lifting tower;

[0014] (2) The utility model discloses a top pulley, bottom pulley, cable are set up to the specific mode, make multistage tower body can synchronously stretch out and draw back, and only need to set up power on the first tower body, second tower body, and the arrangement mode is simple, and the later period maintenance is convenient;

[0015] (3) The utility model discloses compared with the mode of driving a whole cable, the cost of multistrip length shorter cable will be lower than the cable of length being the sum of multistrip, if a cable needs to be replaced when damaging also only needs to replace this root correspondingly, need not replace entirely, thereby reduce the input cost. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 It is whole structure schematic view of the utility model.

[0017] Figure 2 It is whole structure cross section view of the utility model.

[0018] Figure 3 It is the cross section view of lifting tower simplified structure.

[0019] Figure 4 It is the schematic diagram of lifting tower drive mode simplified structure.

[0020] Figure 5 It is auxiliary connecting ring schematic diagram.

[0021] Figure 6 It is the structure schematic diagram of vice support.

[0022] Figure 7 It is the structure schematic diagram of main support.

[0023] Wherein: 1-lifting tower;2-vice support;3-main support;101-first tower body;102-second tower body;103-third tower body;104-fourth tower body;105-fifth tower body;106-hydraulic oil cylinder;107-sliding block;108-top pulley;109-bottom pulley;110-cable;111-auxiliary connecting ring;112-clamp ring;113-auxiliary connecting shaft;114-limiting hole;201-vice support seat;202-gasket;203-lock pin;301-main support seat;302-linear motor;303-positioning pin. DETAILED DESCRIPTION

[0024] Clearly and completely describe the technical scheme in the embodiments of the utility model with reference to the drawings in the embodiments of the utility model, obviously, the described embodiments are only a part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by the ordinary skilled in the art without creative labor belong to the scope of the utility model protection.

[0025] In the description of the utility model, it is necessary to explain that, unless there is explicit provision and limitation, the term "installation", "connection", "connection" should be understood broadly, for example, it can be fixed connection, can also be detachable connection, or integrally connected, can be mechanical connection, can also be electrical connection, can also be directly connected, can also be indirectly connected through the intermediate medium, can be the communication inside two elements. For the ordinary skilled in the art, the specific meaning of the above-mentioned terms in the utility model can be understood according to the specific circumstances.

[0026] Embodiment 1:

[0027] The embodiment provides a high-precision test lifting tower, specifically as Figures 1-4As shown, comprising: lifting tower 1, auxiliary support 2, main support 3, the lifting tower 1 comprises hydraulic cylinder 106 and first tower body 101, second tower body 102, third tower body 103, fourth tower body 104, fifth tower body 105 connected together in turn in the form of layer by layer empty sleeve, one end of the hydraulic cylinder 106 is connected with the first tower body 101, the other end is connected with the second tower body 102; The second tower body 102, the locking pin 203, the fourth tower body 104 are all installed with top pulley 108, the third tower body 103, the fourth tower body 104, the fifth tower body 105 are all installed with bottom pulley 109, the first tower body 101, the second tower body 102, the third tower body 103 are all connected with steel cable 110; The steel cable 110 on the first tower body 101 is sleeved on the top pulley 108 on the second tower body 102 and the bottom pulley 109 on the third tower body 103; The steel cable 110 on the second tower body 102 is sleeved on the top pulley 108 on the third tower body 103 and the bottom pulley 109 on the fourth tower body 104; The steel cable 110 on the third tower body 103 is sleeved on the top pulley 108 on the fourth tower body 104 and the bottom pulley 109 on the fifth tower body 105; The auxiliary support 2 is used for auxiliary support to put down state lifting tower 1; The auxiliary support 2 is rotatably connected on the main support 3, the main support 3 is used for supporting lifting tower 1, the main support 3 is provided with locking structure, when lifting tower 1 stands up, locking mechanism is used for locking lifting tower 1, so that lifting tower 1 and main support 3 cannot rotate relatively. The first tower body 101 is installed with auxiliary connecting shaft 113, which is convenient for external power to have connecting point when supporting lifting tower 1.

[0028] First, the auxiliary support 2 and the main support 3 are fixed on a carrier, which can be the ground or a vehicle, etc. When using the device, first, the auxiliary connecting shaft 113 is connected by using a hydraulic cylinder or other driving equipment, and then the auxiliary connecting shaft 113 is pushed to make the lifting tower 1 rotate on the main support 3 until the lifting tower 1 is completely vertical, and then the locking mechanism is used to limit the lifting tower 1; then the hydraulic oil cylinder 106 is started, at this time the hydraulic oil cylinder 106 starts to elongate, that is, the second tower body 102 is extended along the first tower body 101, when the second tower body 102 is extended, the top pulley 108 on the second tower body 102 moves synchronously, at this time the distance between the end of the steel cable 110 on the first tower body 101 and the same side top pulley 108 increases, that is, the length of the steel cable 110 between the two top pulleys 108 decreases, which makes the steel cable 110 push the bottom pulley 109 on the third tower body 103 to move upward, realizing the extension action of the third tower body 103. In this way, the steel cable 110 on the second tower body 102 will push the fourth tower body 104 to extend, and the steel cable 110 on the third tower body 103 will push the fifth tower body 105 to extend, that is, when the hydraulic oil cylinder 106 drives the second tower body 102 to extend, the third tower body 103, the fourth tower body 104 and the fifth tower body 105 are synchronously extended relative to the upper level, when the hydraulic oil cylinder 106 is retracted, the third tower body 103, the fourth tower body 104 and the fifth tower body 105 are synchronously retracted relative to the upper level, so as to complete the extension and retraction operation of the lifting tower 1.

[0029] The top pulley 108, the bottom pulley 109 and the steel cable 110 are arranged in a specific way, so that the multi-stage tower body can be synchronously extended and retracted, and only the power needs to be arranged on the first tower body 101 and the second tower body 102, the arrangement is simple and convenient for later maintenance; compared with the driving mode of a whole steel cable 110, the cost of multiple steel cables 110 with shorter length will be lower than that of a steel cable 110 with a length equal to the sum of the lengths of the multiple steel cables 110; if a steel cable 110 needs to be replaced due to damage, only the corresponding steel cable needs to be replaced, without the need to replace all the steel cables; by arranging the locking mechanism, the lifting tower 1 is more stable after standing up, and the shaking amplitude is reduced.

[0030] Embodiment 2:

[0031] This embodiment is further expanded on the basis of the above-mentioned embodiments, specifically as Figure 7As shown in the figure, the first tower body 101 is provided with a limiting hole 114, the main support 3 comprises a main support seat 301, the locking mechanism comprises a linear motor 302 and a positioning pin 303, the positioning pin 303 is installed on the linear motor 302, the linear motor 302 is installed on the main support seat 301, and the positioning pin 303 is matched with the limiting hole 114. The linear motor 302 is a commercially available product, and the specific model and working principle can be adaptively selected and understood by those skilled in the art, which will not be described here.

[0032] When the positioning pin 303 is coaxial with the limiting hole 114 after the lifting tower 1 is erected, the linear motor 302 is started at this time, and the linear motor 302 will push the positioning pin 303 to insert into the limiting hole 114, so as to limit the lifting tower 1, and prevent the lifting tower 1 from rotating relative to the main support 3.

[0033] The other parts of the embodiment are the same as those of the above-mentioned embodiments, and will not be described here.

[0034] Embodiment 3:

[0035] The embodiment is further extended on the basis of the above-mentioned embodiments, and specifically as shown in the figure, Figure 3 , Figure 6 , Figure 7 As shown in the figure, the first tower body 101, the second tower body 102, the third tower body 103, the fourth tower body 104 and the fifth tower body 105 are all installed with a plurality of sliding blocks 107.

[0036] The sliding block 107 is made of tin bronze, and the contact surface of the tower body and the sliding block 107 is a guide rail surface, which is made of stainless steel. The tin bronze has the advantages of good wear resistance, self-lubricating property, corrosion resistance, high strength and toughness, good thermal conductivity and low friction coefficient, so as to control the gap between the tower bodies and reduce the overall shaking amount of the lifting tower 1 by reducing the gap.

[0037] The other parts of the embodiment are the same as those of the above-mentioned embodiments, and will not be described here.

[0038] Embodiment 4:

[0039] The embodiment is further extended on the basis of the above-mentioned embodiments, and specifically as shown in the figure, Figure 3 The hydraulic oil cylinder 106 is connected with the first tower body 101 through a ball joint, and the hydraulic oil cylinder 106 is connected with the second tower body 102 through a ball joint.

[0040] When the lifting tower 1 shakes, the relative displacement is alleviated through the ball joint connection, so as to reduce the stress on the hydraulic oil cylinder 106 and prevent the hydraulic oil cylinder 106 from being damaged and leaking.

[0041] The other parts of this embodiment are the same as those in the above embodiments, and will not be described again.

[0042] Example 5:

[0043] This embodiment further extends the above embodiment, specifically as follows: Figure 5 As shown, any one or more of the second tower body 102, the third tower body 103, the fourth tower body 104, and the fifth tower body 105 have multiple auxiliary connecting rings 111 installed at the end away from the main support member 3.

[0044] Tensioning cables are connected to the auxiliary connecting ring 111. When the lifting tower 1 extends to the predetermined height, the other end of the tensioning cable is fixed to the ground or other carrier, so that multiple tensioning cables pull the auxiliary connecting ring 111, thereby improving the stability of the lifting tower 1 and reducing the influence of wind and other factors.

[0045] The other parts of this embodiment are the same as those in the above embodiments, and will not be described again.

[0046] Example 6:

[0047] This embodiment further extends the above embodiment, specifically as follows: Figure 6 As shown, the secondary support 2 includes a secondary support base 201, on which a gasket 202 and a locking pin 203 are provided, and a snap ring 112 is provided on the secondary support base 201, and the locking pin 203 cooperates with the snap ring 112.

[0048] After use, the lifting tower 1 is laid down. At this time, the pad 202 provides auxiliary support for the lifting tower 1, and the locking ring 112 is inserted into the auxiliary support seat 201. Then, the locking pin 203 is used to lock the locking ring 112 into the auxiliary support seat 201 to prevent the lifting tower 1 from sliding relative to the auxiliary support 2 and improve the stability during transportation.

[0049] The other parts of this embodiment are the same as those in the above embodiments, and will not be described again.

[0050] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any way. Any simple modifications or equivalent changes made to the above embodiments based on the technical essence of the present utility model shall fall within the protection scope of the present utility model.

Claims

1. A high-precision test tower, characterized in that, The utility model relates to a lifting tower (1) and a main support (3), and the lifting tower (1) comprises a hydraulic oil cylinder (106) and first tower body (101), second tower body (102), third tower body (103), fourth tower body (104), fifth tower body (105) are connected in order in layer layer empty cover way and slide, one end of hydraulic oil cylinder (106) is connected with first tower body (101), and the other end is connected with second tower body (102), top pulley (108) is installed on second tower body (102), lock pin (203), fourth tower body (104) all, bottom pulley (109) is installed on third tower body (103), fourth tower body (104), fifth tower body (105) all, steel cable (110) is set up on first tower body (101), second tower body (102), third tower body (103) all, steel cable (110) of first tower body (101) is set on top pulley (108) of second tower body (102) and bottom pulley (109) of third tower body (103) on, steel cable (110) of second tower body (102) is set on top pulley (108) of third tower body (103) and bottom pulley (109) of fourth tower body (104) on, steel cable (110) of third tower body (103) is set on top pulley (108) of fourth tower body (104) and bottom pulley (109) of fifth tower body (105) on, vice support (2) is used for the auxiliary support of lifting tower (1) in the state of being laid down, main support (3) is connected on vice support (2), and main support (3) is used for supporting lifting tower (1), and locking structure is set up on main support (3), when lifting tower (1) is set up, locking mechanism is used for locking lifting tower (1), so that lifting tower (1) and main support (3) cannot relatively rotate. Limiting hole (114) is set up on first tower body (101), and main support (3) comprises main support seat (301), locking mechanism comprises linear motor (302), positioning pin (303), positioning pin (303) is installed on linear motor (302), linear motor (302) is installed on main support seat (301), and positioning pin (303) forms cooperation with limiting hole (114). First tower body (101), second tower body (102), third tower body (103), fourth tower body (104), fifth tower body (105) all are installed with a plurality of sliding blocks (107). Hydraulic oil cylinder (106) is connected with first tower body (101) spherical pair, and hydraulic oil cylinder (106) is connected with second tower body (102) spherical pair.

2. The high-precision test lifting tower according to claim 1, characterized in that: The end of any one of second tower body (102), third tower body (103), fourth tower body (104), fifth tower body (105) away from main support (3) is installed with a plurality of auxiliary connecting rings (111).

3. The high-precision test lifting tower according to claim 1, characterized in that: ​ 4. The high-precision test tower according to claim 1, characterized in that: ​ 5. The high-precision test lifting tower according to claim 1, characterized in that: ​ 6. The high-precision test tower according to claim 1, characterized in that: The auxiliary support (2) comprises an auxiliary support seat (201), the auxiliary support seat (201) is provided with a gasket (202) and a locking pin (203), the auxiliary support seat (201) is provided with a clamping ring (112), and the locking pin (203) cooperates with the clamping ring (112).

Images